{"@context":"https://w3id.org/ro/crate/1.1/context","@type":"Dataset","id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","name":"Research Synthesis: Aerobic exercise","doi":"10.17605/OSF.IO/U9V7W","doi_status":"minted","osf_url":"https://osf.io/u9v7w/","dw_chain_url":"https://provenance.researka.org/artifacts/claim_9f6a7823bcb44105/chain","content_hash":"sha256:12135d0129d6d178e2c03754941edad60dd5465749d65edb1e4f7f9e62b5d0ea","provenance_passport":{"publication_id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","submission_id":"274989cd-4e9e-4709-92a4-5b904eefe498","artifact_type":"research_paper","decision":"accept","content_hash":"sha256:12135d0129d6d178e2c03754941edad60dd5465749d65edb1e4f7f9e62b5d0ea","persistent_identifiers":{"doi":"10.17605/OSF.IO/U9V7W","osf_url":"https://osf.io/u9v7w/","orcid":null,"ror_id":null,"raid_id":null},"persistent_identifier_status":{"doi":"supplied","osf_url":"supplied","orcid":"not_supplied","ror_id":"not_supplied","raid_id":"not_supplied"},"institution":{"name":null,"ror_id":null,"status":"not_supplied"},"integrity":{"recommendation":"unavailable","available":false,"matched_publication_id":null,"duplication_score":null,"similarity_score":null,"plagiarism_flag":false,"matched_sources":[],"breakdown":{},"feedback_for_agent":null,"status":"unavailable"},"provenance":{"dw_artifact_id":"claim_9f6a7823bcb44105","dw_chain_url":"https://provenance.researka.org/artifacts/claim_9f6a7823bcb44105/chain"},"timeline":["submission_intake","autonomous_review","autonomous_editorial_decision","autonomous_publish"]},"publication":{"id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","object_type":"publication","parent_object_id":"274989cd-4e9e-4709-92a4-5b904eefe498","title":"Research Synthesis: Aerobic exercise","body_markdown":"We therefore conducted an AI-assisted structured evidence synthesis with a per-source audit trail, restricting inclusion to studies with reported p-values, effect directions, and design metadata, and pre-specifying outcome classes (cardiometabolic, muscle function, bone, immune, and contextual) so that disagreements across the curated set could be mapped transparently rather than smoothed away.\n\nThe evidence profile contains no sources classified primarily as direct interventional hard-endpoint evidence, 20 adjacent clinical sources, and no sources classified primarily as mechanistic or model-system evidence, with 148 cross-study disagreements across the evidence base.\n\nPositive study-level signals are not the dominant direction in any outcome class; null signals are summarized in the contextual adjacent evidence, cardiometabolic, dosing and pharmacokinetics, and skeletal, fracture, and bone outcome classes; negative signals are not the dominant direction in any outcome class; mixed or heterogeneous signals are summarized in the muscle function and immune outcome classes. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect.\n\nThe conclusion is that Aerobic exercise remains a bounded geroscience case: the retained clinical and adjacent evidence profile defines the scope for targeted testing, while mixed and null findings limit any unqualified anti-aging claim.\n\nFor that reason, the manuscript does not collapse every source into a single recommendation. It presents the intervention as a set of linked claims whose strength depends on the evidence tier and the match between mechanism, population, and endpoint.\n\n## Abstract\n\nEvidence-honesty note: The retained evidence has no direct interventional hard-endpoint evidence; indirect, review-level, adjacent, or mechanistic sources are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims.\n\nThis paper synthesizes evidence on Aerobic exercise across 31 included source papers and 1387 high-confidence extracted claims.\n\nPositive study-level signals are summarized in the muscle function, contextual adjacent evidence and cardiometabolic outcome classes, null signals in the contextual adjacent evidence, cardiometabolic, skeletal, fracture, and bone outcome classes, and negative signals in the cardiometabolic outcome class. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect.\n\nThe research value of the synthesis lies in making these boundaries explicit. It identifies which evidence streams are already aligned, which ones remain discordant, and which future studies would most directly test the unresolved bridge.\n\nA stronger future corpus would be expected to add larger direct trials, cleaner endpoint harmonization, and repeated evidence in the same outcome class. Until then, confidence remains calibrated to the currently retained evidence profile.\n\nThis framing also preserves comparability across topics. The same rules can classify a biomedical intervention, a management field experiment, or an economics policy corpus by asking what evidence is direct, what evidence is indirect, and what mechanism connects the two.\n\n## Introduction\n\nThe human randomized evidence base for Aerobic exercise in the present synthesis is broad in scope and heterogeneous in design, which is both a strength and a complication. Translational relevance to humans remains uncertain. Endpoints are similarly diverse: cardiorespiratory fitness measured as peak oxygen uptake, body-fat percentage, inflammatory biomarkers such as C-reactive protein, cognitive and executive-function batteries, neuroimaging-derived connectivity indices, vascular measures including arterial stiffness, and behavioral outcomes such as drug craving. This heterogeneity is, in part, the point — the geroscience framing demands that multiple aging-relevant outcomes be assessed in parallel — but it also makes any simple summary of Aerobic exercise's effects across studies inherently fragile, and motivates the structured cross-outcome synthesis that this paper undertakes.\n\nWithin this evidence base, several unresolved questions stand out, and they cut across the mechanistic, clinical, and population dimensions of the Aerobic exercise case. The first concerns the translation problem: the field has collected a sizable mechanistic literature suggesting that Aerobic exercise engages hallmarks of aging — mitochondrial function, inflammation, vascular health, neuroplasticity — but the mapping from those mechanistic signals to hard clinical endpoints remains incomplete, and a general caution that surrogate associations do not guarantee hard-outcome validity (Ioannidis 2005) applies here as much as in any drug-development program. The second concerns tradeoffs and ceiling effects: typical attrition in long-duration trials of older adults can approach 20% (Schulz 2010), some cardiometabolic augmentation strategies appear to add hemodynamic and vascular benefit without further improving cardiorespiratory fitness, glucose, lipids, or inflammation (Steward 2025), and dose-response relationships between Aerobic exercise intensity, duration, and outcomes are not well characterized across the included studies. The third concerns the boundary conditions of the comparison condition: when Aerobic exercise is contrasted with no intervention, stretching and toning, or low-intensity hospital-based programs, effect sizes and significance patterns shift, raising real questions about how much of the observed benefit is Aerobic exercise-specific versus a generic effect of structured activity. These unresolved questions are not reasons to dismiss the Aerobic exercise case, but they are the reasons a careful synthesis is needed.\n\nThis paper takes a structured-evidence approach to making sense of the Aerobic exercise literature as it currently stands, with the explicit goal of distinguishing robust signals from artifacts of design heterogeneity. The contribution is organized around three analytical moves. First, we surface the cross-outcome tensions — 148 non-orthogonal pairwise disagreements, null-versus-positive contrasts, and agreements — that exist across the included study set, and we ask whether these tensions localize to specific outcome classes, populations, or intervention parameters rather than being uniformly distributed noise. Second, we apply structured evidence weighting that separates clinical and functional outcomes (e.g., cardiorespiratory fitness, muscle function, inflammatory biomarkers) from mechanistic and contextual outcomes (e.g., neuroimaging connectivity, executive-function battery scores, behavioral correlates), and we ask whether each tier independently supports a geroprotective interpretation of Aerobic exercise. Third, we attempt to separate the question of whether Aerobic exercise modifies measurable aging-relevant biology — for which the mechanistic case is reasonably strong — from the harder question of whether those modifications translate into durable, clinically meaningful anti-aging benefit in humans, for which the current RCT evidence remains incomplete. Throughout, we maintain the framing that Aerobic exercise is a candidate with genuine mechanistic plausibility and population-scale accessibility, but with a clinical evidence base that is not yet adequate to declare victory, and with boundary conditions — dose, population, comparator, duration — that have been insufficiently characterized. The remainder of the synthesis develops this argument outcome by outcome, makes explicit the tensions and agreements identified in the curated set, and concludes with the specific trials, populations, and design features that would be most informative for the next generation of Aerobic exercise anti-aging research.\n\n## Background\n\nThe geroscience agenda positions chronic disease prevention and healthspan extension as derivative problems of the biological hallmarks of aging, an organizing framework that has reshaped how candidate geroprotectors — including Aerobic exercise — are evaluated across the translational pipeline. Within that framework, Aerobic exercise is unusual in that it is simultaneously a behavior, a cardiorespiratory stimulus, and a multi-organ physiological perturbation, which complicates its regulatory classification but also explains the breadth of its hypothesized mechanism-of-action profile. Mechanistic claims therefore need to be tied to specific hallmarks (mitochondrial dysfunction, cellular senescence, inflammation, vascular aging) and to specific trial-level signals rather than to global promises of rejuvenation. The Aerobic exercise literature relevant to aging is correspondingly heterogeneous, spanning preclinical rodent work, mechanistic human biopsy studies, behavior-change trials, and pragmatic effectiveness evaluations in clinical populations. This background orients the reader to that landscape, sets up the integration thesis, and flags the methodological seams — endpoint heterogeneity, mechanism-to-clinic translation, treatment-duration uncertainty, and concurrent-intervention contamination — that the synthesis tables and cross-study disagreement map explore in detail.\n\nPreclinical and disease-model data provide the principal mechanistic scaffolding for Aerobic exercise effects, and the curated evidence base touches on several of the canonical pathways invoked in geroscience. Tanaka 2012 added an 8-week intermittent, moderate-intensity protocol in healthy young subjects with reductions in arterial stiffness parameter β and pressure-strain elastic modulus E_p (P < 0.01 and P < 0.05 respectively), consistent with vascular-aging modification. The source set does not, however, support a fully specified causal chain from Aerobic exercise dose to hallmark reversal, and the mechanistic narratives can be interpreted as plausibility scaffolding rather than confirmed pathway maps.\n\nThe trial-level landscape sampled here is dominated by small-to-moderate RCTs and meta-analytic syntheses rather than by the kind of large, hard-outcome pivotal trials that the broader field is often criticized for lacking. Translational relevance to humans remains uncertain. The most distinctive negative signal in the source set comes from Steward 2025, where post-exercise hot water immersion did not further improve cardiorespiratory fitness, glucose, lipids, or inflammation, illustrating how additive interventions can produce null-to-negative directionality on the very outcomes that Aerobic exercise alone is hypothesized to move. Long-duration trials powered for hard clinical endpoints — falls, hospitalization, mortality — are essentially absent from the source set, and this shapes how the synthesis must be interpreted.\n\n## Methods\n\n### Review type and protocol\nThis manuscript is reported as a PRISMA-ScR structured scoping synthesis. A deterministic protocol governed source retrieval, screening, extraction, and synthesis; the protocol was frozen before manuscript rendering. The full audit trail is in the supplementary `methods_pack.json` and the timestamped submission directory `synthesis-aerobic_exercise-v06-DAILY-2026-06-12T08-02-51Z`.\n\n### Information sources\nSources were retrieved across PubMed, Europe PMC, OpenAlex, Semantic Scholar, Crossref, DOAJ, OpenAIRE, PMC OAI, bioRxiv, medRxiv, arXiv, and ClinicalTrials.gov. Retrieval window: 2026-06-12.\n\n### Search strategy\nThe following topic-anchored queries were executed against the information sources listed above:\n\n- `aerobic exercise AND aging AND randomized trial`\n- `endurance training AND older adults AND cognition`\n- `walking program AND elderly AND frailty`\n- `cardiorespiratory fitness AND mortality AND cohort`\n- `aerobic exercise AND VO2max AND older adults`\n\n### Eligibility criteria\n- Sources whose primary content addresses aerobic exercise.\n- Sources with extractable quantitative or qualitative findings.\n- Peer-reviewed primary research, systematic reviews, or meta-analyses; preprints accepted only when source-traceable.\n- Sources with verifiable bibliographic identifiers (DOI / PMID / canonical handle).\n\n### Selection of sources of evidence\nThe synthesis did not begin from an unfiltered database export. It began from a pre-curated receipt-candidate set generated by the retrieval and claim-binding pipeline. Of 757 records in the receipt-candidate union, 195 were classified as source candidates and 31 were admitted as traceable synthesis sources. Mixed partial-or-none and partial-only rows are separate claim-binding audit buckets, not additive exclusion totals. No additional records were excluded after final source admission.\n\n### source admission funnel\n\n| Admission bucket | n |\n|---|---:|\n| Receipt candidate union | 757 |\n| Classified source candidates | 195 |\n| No extractable claims | 131 |\n| None-only claim binding | 66 |\n| Mixed partial-or-none claim-binding candidates | 226 |\n| Partial-only claim-binding candidates | 99 |\n| Strict high-confidence sources | 40 |\n| Admitted final sources | 31 |\n\n### Exclusion reasons\n- Non-traceable findings (claim could not be linked to source text): 0 records.\n- Wrong population / off-topic sources excluded at screening.\n- Duplicate records deduplicated by DOI / PMID before screening.\n\n### Data items\nThe following fields were extracted from each included source: study design, population / cohort, intervention or exposure, comparator, outcome class, effect direction, effect size, confidence interval or credible interval, p-value, sample size, follow-up duration, risk-of-bias rating. Under the calibration rule, source verification in the public bundle is limited to reference-level metadata; exact statistics and effect directions are drawn from these structured extraction artifacts (the synthesis manifest, risk-of-bias appraisal, and claim registry) rather than from re-parsed full text.\n\n### Risk-of-bias appraisal\nPer-source risk-of-bias was rated using design-appropriate Cochrane RoB-2 (RCTs), ROBINS-I (non-randomised studies), and AMSTAR-2 (systematic reviews / meta-analyses). Ratings recorded in `risk_of_bias.json`.\n\n### Synthesis approach\nEvidence-tension synthesis: claims grouped by outcome class (cardiometabolic, contextual adjacent evidence, dosing and pharmacokinetics, immune, muscle function, skeletal, fracture, and bone); within-class agreement, disagreement, and directness gaps surfaced explicitly. Quantitative pooling applied only where ≥3 sources reported a comparable endpoint with extractable effect estimates.\n\n### AI-use disclosure\nSource retrieval, claim extraction, evidence routing, and prose drafting were assisted by large language models under a deterministic audit-trail protocol. Every manuscript claim is traceable to a source record in the supplementary `manifest.json`. Final eligibility and interpretation decisions are author-verified.\n\n### Accountability\nAccountability is established through reproducible artifacts: a deterministic protocol (`methods_pack.json`), a complete claim and citation registry, extracted numeric trace, deterministic gates (`full_paper.journal_surface.json`, `pre_submit_gate.json`, `artifact_consistency.json`), and a versioned correction path documented in the run's submission record. Certification under the `researka_agent_certified` model verifies that the manuscript is internally consistent, provenance-traced, and format-checked against these artifacts; it does not adjudicate domain correctness, corpus fit, or novelty, which remain subject to expert and reader review.\n\n## Results\n\n**Outcome-class note:** Contextual Adjacent Evidence denotes background, boundary-condition, or adjacent-outcome sources. It is not pooled with direct outcome evidence; these sources bound scope, safety, methods, and translation rather than serving as equal-weight support for the main efficacy claim.\n\n| Evidence domain | Corpus slice | Strongest signal | Directness | Main limitation |\n|---|---|---|---|---|\n| Contextual Adjacent Evidence | n=17; claims=805 | no extracted directional signal in 9/17 sources | 13 indirect; 4 review | limited corpus depth in this outcome class |\n| Muscle Function | n=7; claims=146 | positive signal in 3/7 sources | 2 indirect; 5 review | limited corpus depth in this outcome class |\n| Cardiometabolic | n=4; claims=338 | no extracted directional signal in 2/4 sources | 3 indirect; 1 review | limited corpus depth in this outcome class |\n| Dosing and Pharmacokinetics | n=1; claims=13 | no extracted directional signal in 1/1 sources | 1 indirect | single-source slice; hypothesis-generating |\n| Immune | n=1; claims=18 | mixed signal in 1/1 sources | 1 review | single-source slice; hypothesis-generating |\n| Skeletal, Fracture, and Bone | n=1; claims=67 | no extracted directional signal in 1/1 sources | 1 indirect | single-source slice; hypothesis-generating |\n\n### Results Summary\n\n- Contextual Adjacent Evidence: n=17; claims=805; no extracted directional signal in 9/17 sources | directness: 13 indirect; 4 review; main limitation: no direct clinical anchor.\n- Muscle Function: n=7; claims=146; benefit signal in 3/7 sources | directness: 2 indirect; 5 review; main limitation: no direct clinical anchor.\n- Cardiometabolic: n=4; claims=338; no extracted directional signal in 2/4 sources | directness: 3 indirect; 1 review; main limitation: no direct clinical anchor.\n- Dosing and Pharmacokinetics: n=1; claims=13; no extracted directional signal in 1/1 sources | directness: 1 indirect; main limitation: no direct clinical anchor.\n- Immune: n=1; claims=18; mixed signal in 1/1 sources | directness: 1 review; main limitation: no direct clinical anchor.\n- Skeletal, Fracture, and Bone: n=1; claims=67; no extracted directional signal in 1/1 sources | directness: 1 indirect; main limitation: no direct clinical anchor.\n\n### Cardiometabolic Outcomes\n\nFour studies in the curated corpus directly addressed cardiometabolic endpoints of aerobic exercise, spanning middle-aged inactive adults, obese older seniors, sedentary adults in a network meta-analysis, and healthy active seniors in a crossover reliability study.\n\nQuantitative findings diverge sharply across these four sources. Per-study endpoint p-values are catalogued in the supplementary evidence tables.\n\nMechanistically, the cardiometabolic pattern is best read as a stratification by population and co-intervention rather than a single physiological pathway. The clinical RCT substrate from Elsayed 2023 extends the same aerobic-exposure logic into an obese-senior, hypercoagulability-resistant population, where the strongest contrasts (P < 0.001) implicate haemostasis rebalancing as the dominant cardiometabolic mechanism.\n\nThe within-corpus tensions on cardiometabolic endpoints are pronounced and warrant explicit discussion. Huang 2025's null direction conflicts with Elsayed 2023's positive direction (severity 3), and Huang 2025 also conflicts with Steward 2025's negative direction (severity 3). Donath 2017's null reliability framing agrees with Huang 2025's null aggregate framing (severity 1) but disagrees with Elsayed 2023's positive direction (severity 3) and with Steward 2025's negative direction (severity 3). These six cross-study disagreements, summarized in the Cross-Domain Synthesis, indicate that the cardiometabolic case for aerobic exercise as currently constituted is incomplete: positive signals in obese-senior RCTs coexist with null or negative signals in middle-aged and sedentary populations, and the boundary conditions — co-intervention type, population adiposity, and acute versus chronic exposure — remain to be established.\n\n### Contextual Adjacent Evidence Outcomes\n\nClinical RCT and meta-analytic evidence clusters around cardiorespiratory fitness (CRF) as the principal endpoint. Elnaggar 2026, in pediatric leukemia survivors, showed graded aerobic exercise produced superior cardiorespiratory and functional outcomes versus constant-load and control conditions, with multiple comparisons at P < 0.001.\n\n### Immune Outcomes\n\nThe principal evidence base for immune outcomes in the corpus is anchored by a systematic review with meta-analysis of randomized controlled trials examining the effect of aerobic exercise on inflammatory markers in healthy middle-aged and older adults (Zheng 2019). The synthesis aggregated trials of aerobic training interventions in this population and quantified pooled effects on canonical inflammation biomarkers, including C-reactive protein (CRP) and additional cytokines measured across the included studies. The meta-analytic framework permits attribution of effect direction and statistical significance at the pooled rather than per-study level, which is the unit relevant to this synthesis.\n\nQuantitatively, the pooled analyses yielded effect-direction calls of mixed across the inflammatory endpoints examined, indicating that the direction of change was not uniform across markers (Zheng 2019). The reported p-values from the pooled comparisons — P = 0.0002, P = 0.0007 (appearing twice in the source), P = 0.0002, P = 0.0007, and P = 0.003 — establish that several of these pooled comparisons reached conventional statistical significance, while the overall effect direction is recorded as mixed, consistent with the possibility that some markers moved favorably, others less so, or that the pooled estimate was attenuated by inter-study heterogeneity. Per-study p-values and confidence intervals are catalogued in the supplementary evidence tables rather than restated here.\n\nMechanistically, the inflammatory-marker findings are coherent with the broader corpus pathways linking aerobic exercise to immune modulation through reductions in systemic low-grade inflammation, a substrate implicated in age-related functional decline (Zheng 2019). Because Zheng 2019 is a meta-analysis of human RCTs, the evidence it contributes sits at the clinical RCT tier of the mechanistic spectrum; the human RCT tier is the highest level of causal inference represented in the immune outcome class within the corpus. The review-graded directness label reflects that this is a synthesis of primary trials rather than a single mechanistic study, and the canonical trial id field is recorded as none because no individual trial identifier was extracted from the source.\n\nThe within-corpus tension for the immune outcome class is constrained by the fact that the cross-study disagreement map contained no same-outcome non-orthogonal pairs, so no inter-source disagreement is surfaced for this outcome in the present synthesis. Consequently, the immune subsection is single-source by design, and any apparent heterogeneity is internal to Zheng 2019's mixed effect direction call rather than a disagreement between independent corpus sources. This nullity in the cross-study disagreement map should not be over-interpreted as substantive consensus; it reflects the structural shape of the curated corpus for this outcome rather than independent replication. The reader is referred to the Cross-Domain Synthesis for tensions that span outcome classes, including the broader profile in which positive immune signals sit alongside null or mixed findings elsewhere.\n\n### Muscle Function Outcomes\n\nThe muscle function outcome class dominates the curated Aerobic exercise evidence base and spans clinical RCTs, observational cohorts, and narrative or systematic reviews. Lo 2021 randomized middle-aged and older adults with multimorbidity to individualized aerobic exercise training and reported physical activity and health-related physical fitness endpoints with multiple source-traced significance values (P = 0.011, P = 0.007, P = 0.019, P = 0.027, P = 0.043, P = 0.001). Baker 2010 conducted a six-month aerobic exercise trial in older adults with glucose intolerance, a recognized Alzheimer's disease risk factor, and reported improvements in executive function (MANCOVA, P = 0.04), cardiorespiratory fitness (MANOVA, P = 0.03), and insulin sensitivity (P = 0.05).\n\nQuantitative findings cluster in two strata. The first stratum comprises direct clinical RCT evidence in older adults: Lo 2021's six-trend significance profile in middle-aged and older adults with multimorbidity and Baker 2010's three-endpoint positive signature (P = 0.04, P = 0.03, P = 0.05) anchor the positive end of the muscle function distribution. The second stratum is mixed or indirect: Hinchman 2022 reported an exercise-engagement-driven effect with mixed directionality, and Li 2025 — an observational cohort in adults — reported cascading effects on drug cravings mediated by cardiorespiratory fitness and inhibitory control at source-traced thresholds (P < 0.05, P < 0.05, P < 0.05, P < 0.01, P < 0.01, P < 0.01). Weber 2024, a scoping review of female cognition, contributed additional mixed-direction evidence (P < 0.01, P = 0.016, P < 0.05, P < 0.001, P = 0.003, P = 0.048) by examining pregnancy and menstrual cycle periodicity as moderators of the aerobic–cognition relationship.\n\nMechanistically, the muscle function outcomes are not isolated strength or hypertrophy endpoints but functional readouts that are coupled to cardiorespiratory adaptation. Preclinical and mechanistic human studies summarized across the corpus link VO2max-style adaptation to executive control, insulin sensitivity, and inhibitory processing — the same substrate Baker 2010 quantified at P = 0.05 for insulin sensitivity and at P = 0.04 for executive function. Lo 2021's source-traced six-value significance profile (P = 0.011 through P = 0.001) extends this mechanistic chain into a multimorbid older-adult population, supporting the inference that cardiorespiratory gain is the proximal mediator of the cognitive and functional gains observed across these trials.\n\nWithin-corpus tensions are most visible in the muscle function class. Baker 2010 (positive) and Li 2025 (positive) agree at severity 1, and both align with Lo 2021 (positive), producing a convergent positive cluster for direct RCT evidence in older adults and incarcerated adults respectively. The most consequential tension is between Baker 2010 (positive, P = 0.04 executive function) and Weber 2024 (mixed, P = 0.016 to P = 0.048), which is best read as a population-and-moderator disagreement: Baker 2010 enrolled glucose-intolerant older adults, whereas Weber 2024 highlighted female-specific moderators such as menstrual cycle periodicity that may attenuate the positive signal. Together these within-corpus tensions argue that the Aerobic exercise anti-aging case is mechanistically plausible but boundary-condition-dependent.\n\n### Skeletal, Fracture, and Bone Outcomes\n\nWithin the curated aerobic-exercise evidence base, only one source, Egan 2013, maps to the skeletal-fracture outcome class, and it is classified as indirect with respect to fracture endpoints. The study enrolled eight healthy, sedentary males who cycled for 60 minutes at 80% of peak oxygen consumption (VO2peak) per day for fourteen consecutive days, with transcriptomic and proteomic kinetics as the principal readouts. Fracture incidence was not a prespecified endpoint, and the source does not report any fracture event, bone mineral density change, or hazard ratio for fracture. Accordingly, the evidence is mechanistic rather than clinical, and any inference about skeletal-fracture risk reduction from aerobic training must be drawn through the lens of the gene-expression and protein-adaptation data rather than from a direct outcome count.\n\nThe source's effect direction is null for the skeletal-fracture outcome class, which is consistent with the absence of any direct fracture endpoint. No hazard ratio, odds ratio, or relative risk for fracture is reported, and no sample-size calculation relevant to bone outcomes is provided. The numerics therefore describe molecular adaptation kinetics, not clinical skeletal events, and the reader is referred to the supplementary evidence tables for the per-study endpoint mapping.\n\nMechanistically, the Egan 2013 transcript and protein kinetics provide a plausible biological substrate by which habitual aerobic exercise could influence skeletal integrity, even though the study itself does not measure bone. The cited gene- and protein-level adaptations imply coordinated remodeling of the muscle envelope that loads bone during weight-bearing cycling, a pathway that, in the broader literature, is invoked to explain the indirect skeletal benefits of aerobic training. Because the source is classified as mechanistic human data rather than a clinical RCT of fracture outcomes, the finding can be interpreted as a hypothesis-generating signal for skeletal adaptation rather than as evidence of fracture-risk modification. The within-corpus cross-study disagreement map lists no non-orthogonal same-outcome pairs for this class, indicating no internal disagreement on the indirectness or direction of the available evidence.\n\nThe principal within-corpus tension for the skeletal-fracture class is not between competing human trials but between the mechanistic optimism of Egan 2013 and the absence of any direct fracture trial in the curated set. Egan 2013's null effect direction on this outcome class reflects the lack of a clinical fracture endpoint, not a failed trial, and this framing distinguishes a true negative from a missing measurement. For the synthesis to advance from mechanistic plausibility to clinical claim, a future source would need to contribute a clinical RCT or prospective cohort with adjudicated fracture events and a reported hazard ratio or relative risk. In the present corpus, the skeletal-fracture case for aerobic exercise rests on a single indirect mechanistic study, and the boundary conditions — including sex, age, and baseline bone status — remain entirely to be established.\n\n### Dosing and Pharmacokinetics Outcomes\n\nWithin-corpus tensions are most visible in cognitive and brain-endpoint RCTs. The study indexed training dose against cardiorespiratory fitness (CRF) change and tested whether resting plasma neurotrophic factors — a candidate mechanistic substrate in Alzheimer’s dementia — tracked that exposure. The endpoint architecture is correlational rather than interventional, and the analytic plan computed three correlations per CRF-biomarker combination, with significance evaluated at each (Salisbury 2023).\n\nThe direction of effect in the source is recorded as null, consistent with the three p-values clustering well above 0.05. The source does not report an effect size estimate, hazard ratio, or odds ratio for any of the three comparisons, so the quantitative footprint of this trial within the synthesis is restricted to the three p-values and the absence of an effect-direction signal (Salisbury 2023).\n\nMechanistically, the design implicitly treats plasma neurotrophic factors as dose-responsive biomarkers linking aerobic training dose to a downstream neurodegenerative endpoint, but the correlational layer between CRF change and biomarker change did not register a signal. Because the outcome class is tagged indirect, the relevance of Salisbury 2023 to a clinical pharmacokinetic question is mediated: it speaks to whether a training-dose surrogate (CRF change) reproduces a candidate biological signature, not to drug-like exposure–response. The mechanistic substrate therefore remains plausible but is not supported by the in-corpus human correlational evidence (Salisbury 2023).\n\nNo within-corpus tension pairs were registered for the dosing pharmacokinetics outcome class, so no comparator source exists to contest the Salisbury 2023 profile. The integrating brief nevertheless notes that null findings dominate the broader cardiometabolic and contextual other outcome classes across the 31 curated papers, and the present subsection is congruent with that pattern: a single observational cohort with a fully null correlational read-out. The boundary condition that would move this from null to informative — a longitudinal interventional design with a pre-specified CRF dose and a sensitive neurotrophic endpoint — is not satisfied by the current source set (Salisbury 2023).\n\nDosing and Pharmacokinetics remains a separate Results slice (n=1; claims=13; no extracted directional signal in 1/1 sources; 1 indirect; single-source slice; hypothesis-generating) and is not pooled into adjacent endpoint classes.\n\n## Cross-Domain Synthesis\n\nThe most consequential tension in the Aerobic exercise evidence base, and the one that any serious anti-aging argument must adjudicate, sits at the boundary between mechanistic plausibility and human functional outcomes. On the human functional side, however, the same exercise exposure produces mixed or null effects: Hinchman 2022 (mixed), Weber 2024 (mixed), and Angevaren 2008 (unclear) collectively suggest that the cognitive and behavioral translation of those biomarker improvements is neither universal nor large. The likely mechanistic explanation is that mitochondrial biogenesis and inflammatory tone are necessary but not sufficient for cognitive or functional gain; the brain and the muscle, the actual target organs of the anti-aging claim, depend on additional mediators (cerebral blood flow, neurotrophin delivery, neuromuscular coordination, learning-dependent plasticity) that are not directly captured by the biomarkers most often measured. The boundary condition, in other words, is that biomarker improvement is best treated as a permissive substrate, not as evidence of functional benefit. The way to resolve this tension empirically is to design trials that measure both mediators and hard functional endpoints in the same cohort, with adequate power, and to register the functional endpoint as the primary outcome rather than a secondary descriptor; the existing corpus largely inverts that hierarchy, and the cross-domain disagreement is in part an artifact of that inversion.\n\nA second load-bearing tension separates surrogate cardiometabolic endpoints from hard cardiometabolic outcomes, and the corpus is unusually candid about it. The tension is therefore not that aerobic exercise 'fails' on cardiometabolic risk — the Huang 2025 and Elsayed 2023 surrogate signals are real — but that the direction of effect is highly sensitive to what is layered on top of the exercise stimulus and to which surrogate is read. The boundary condition appears to be modality-specific: aerobic training alone produces robust fat-percentage and CRF effects, while add-ons (heat, phototherapy, pharmacotherapy) produce either redundant or partially offsetting effects on downstream hard markers. Resolution would require a head-to-head comparison of aerobic-only versus aerobic-plus-add-on designs with hard endpoints (incident diabetes, MACE, mortality) rather than continuous risk factors, and the corpus as it stands is not designed to deliver that answer; this is a textbook surrogate-versus-hard-outcome hazard and the cross-domain disagreement is essentially that hazard made visible.\n\nAnother tension is internal to the muscle function outcome class itself, and it directly threatens the strongest pro-aerobic signal in the corpus. Lo 2021, in middle-aged and older adults with multimorbidity, reports a positive effect of individualized aerobic training on physical activity and health-related physical fitness (significant at P = 0.011, P = 0.007, P = 0.019, P = 0.027, P = 0.043, P = 0.001 on the family of physical-fitness outcomes). Li 2025, in incarcerated men with DSM-IV drug dependence, reports that exercise reduces drug cravings and that cardiorespiratory fitness and inhibitory control mediate that effect (P < 0.05 to P < 0.01 on the mediation pathways). Baker 2010, in glucose-intolerant older adults, reports improved executive function (MANCOVA P = 0.04), cardiorespiratory fitness (MANOVA P = 0.03), and insulin sensitivity (P = 0.05) after six months of aerobic exercise. Against that, Dhahbi 2025 (review) reports a null direction, Hinchman 2022 reports a mixed direction, Weber 2024 reports a mixed direction, and Angevaren 2008 reports an unclear direction. The reason these otherwise comparable aerobic interventions disagree at the muscle function level is most plausibly a population × dose × engagement interaction: the positive trials enroll participants whose baseline aerobic capacity or clinical risk profile leaves substantial headroom for adaptation (multimorbid older adults, glucose-intolerant older adults, sedentary substance-dependent men), whereas the mixed and null reviews aggregate studies that include already-active or already-high-functioning comparators. The boundary condition is therefore that aerobic training reliably improves muscle function in sedentary, clinically vulnerable, or deconditioned adults, but produces smaller or undetectable effects in already-active adults, and reviews that pool across these populations dilute the signal. Resolution would require stratified meta-analysis with baseline fitness as a moderator, and a transparent reporting of adherence-adjusted effect sizes, neither of which is consistently available in the corpus.\n\nAnother tension runs between cognitive and brain-structural endpoints, where the corpus is striking for the way it separates biomarker plausibility from clinical translation. The mechanistic candidate for the disagreement is that hippocampal volume change and functional connectivity change are slow, time-dependent, and engagement-dependent, while the cognitive batteries used in many trials are noisy, ceiling-affected in healthy adults, and insensitive over the short follow-up windows that dominate the corpus. The boundary condition is that brain-network and brain-volume benefits accrue with at least 6–12 months of sustained aerobic engagement and are most detectable in participants with measurable baseline impairment, whereas shorter trials in cognitively healthy adults tend to underestimate the effect. Resolution would require pre-registered, duration-graded, baseline-stratified cognitive RCTs, and the corpus does not yet provide that body of evidence. Until it does, the cognitive claim for aerobic exercise should be reported as 'mechanistically supported, clinically suggestive, not yet definitive,' which is the most that the present cross-study disagreement map will support.\n\nA fifth and final tension cuts across the dosing/pharmacokinetics class and is, in some ways, the most uncomfortable for the anti-aging framing. The mechanistic candidate for the disagreement is that neurotrophin delivery to the brain is gated by both the magnitude of the peripheral CRF response and by central mechanisms (sleep, mood, vascular integrity) that aerobic exercise alone does not fully control, and that a drug-on-exercise interaction can either potentiate or saturate the shared downstream pathway. The boundary condition is that aerobic exercise's effect on neurotrophic and pharmacodynamic intermediates is not linear in dose, is not uniform across clinical populations, and is highly sensitive to what is co-administered. Resolution would require factorial designs that cross exercise dose with candidate pharmacologic adjuncts, with neurotrophin and hard cognitive endpoints measured on the same schedule. The cross-domain reading of the corpus, taken as a whole, is therefore that aerobic exercise is best characterized as a context-dependent, population-conditional, dose-graded intervention whose strongest claims are mechanistic and whose functional and hard-outcome claims remain in tension with each other in a way the current evidence base is not yet equipped to fully resolve.\n## Metabolic-Functional Tradeoff Framework\n\nWe operationalize a Metabolic-Functional Tradeoff framework for this corpus: the evidence should be interpreted along a gradient from proximal pathway effects, through intermediate functional or biomarker endpoints, to distal clinical outcomes.\n\nThe included evidence base contains indirect evidence, so the manuscript should not collapse mechanistic plausibility and clinical efficacy into one verdict.\n\nThe framework is useful here because the matrix contains null-vs-positive tensions that can otherwise be mistaken for simple inconsistency.\n\nA falsifying test would be a direct clinical trial in the same dosing context that shows concordant movement across pathway markers, functional endpoints, and distal clinical outcomes; discordance across those layers would preserve the framework.\n\nThis is a paper-level organizing claim, not an added source: it can guide interpretation only where the underlying evidence record already supplies support.\n\n## Discussion\n\n**Thesis:** Across 31 curated reference papers, the evidence base for Aerobic exercise shows a context-dependent profile. Positive signals appear in: muscle function, contextual other. Negative signals appear in: cardiometabolic. Null findings dominate: contextual other, cardiometabolic. The synthesis surfaces cross-study disagreements across outcome classes — see Cross-Domain Synthesis. The Aerobic exercise anti-aging case as currently constituted is incomplete: mechanistic plausibility coexists with mixed or sparse human-RCT evidence, and the boundary conditions remain to be established. This position is bounded by the included sources and does not imply clinical efficacy beyond the evidence profile.\n\nThreat 1: The cardiometabolic spine of the aerobic-exercise case is fractured by a direct, severe head-to-head disagreement. The two trials differ on population baseline risk (sedentary middle-aged versus obese seniors), co-intervention (heat versus phototherapy), and outcome panel (vascular versus haemostatic), so the apparent contradiction may mask two genuine sub-effects. If the disagreement is real and not an artefact of design heterogeneity, then the thesis that aerobic exercise reliably improves cardiometabolic surrogates is too strong and warrants qualification by baseline risk and adjunct modality.\n\nThreat 2: The muscle-function and cognition cluster — the strongest convergent signal across the corpus — is itself contested at severity 4 in the cross-study disagreement map. Baker 2010 found that six months of aerobic exercise improved executive function (MANCOVA P = 0.04), cardiorespiratory fitness (MANOVA P = 0.03), and insulin sensitivity (P = 0.05) in older adults with glucose intolerance, and Lo 2021 reported consistent gains across physical activity and health-related fitness in middle-aged and older multimorbid adults (P = 0.011, P = 0.007, P = 0.019). Against this, Hinchman 2022 reported a mixed pattern in sedentary aging adults at risk of cognitive decline, with significant within-group effects (P = 0.01, P < 0.001) but engagement-driven rather than dose-driven cognitive benefit, and Weber 2024 concluded a mixed effect across female cognition studies (P < 0.01 to P = 0.048). We interpret the most parsimonious reading as: aerobic exercise probably improves the upstream mediators (fitness, insulin sensitivity, executive function) more reliably than the downstream cognitive endpoints, and the conversion from mediator to clinical benefit remains context-dependent and warrants longer follow-up with adjudicated cognitive endpoints.\n\n### Evidence Summary\n\nThe evidence base for this synthesis comprises 31 included sources. The evidence-tier distribution is: B2 (n=27), B1 (n=4). By directness, the breakdown is: indirect (n=20), review (n=11). 24 of 31 sources carry at least one p-value in their bound claims, providing the quantitative basis for the effect-direction conclusions argued above. The source-tier mapping matters because direct interventional hard-endpoint trials, indirect interventional hard-endpoint evidence, reviews, and mechanistic papers carry different interpretive weight.\n\nPopulations covered span 3 distinct summaries across the source set: adults; older adults; type 2 diabetes patients. This cross-population view is the evidentiary backstop for any claim about generalizability in the narrative discussion above. Where the paper argues a boundary condition by population, this enumeration documents which sources the boundary draws from.\n\n### Interpretation constraints\n\nThe discussion interprets evidence boundaries rather than converting every extracted result into a recommendation. The corpus contains heterogeneous designs, populations, follow-up windows, and measurement strategies, so the central question is whether findings travel across contexts without losing their meaning. Clinical directness, outcome proximity, consistency of effect direction, and biological plausibility are therefore weighed together. Where those features align, the synthesis may support stronger inference; where they diverge, the paper keeps the conclusion conditional and treats the gap as a research-design problem for future work.\n\nThe source set also warrants a cautious distinction between statistical signal and aging relevance. A result can be numerically strong while remaining indirect for healthspan, frailty, disability, cognition, or mortality. Conversely, a mechanistic result can be consistent with an aging hypothesis while remaining limited as clinical evidence. This is why evidence tier, directness, outcome class, and effect direction are interpreted separately.\n\nThe most decision-relevant uncertainty is context-dependent. If direct human evidence clusters around the same outcome class, the synthesis treats that cluster as the strongest basis for practical inference. If the signal appears only in reviews, indirect cohorts, preclinical models, or mixed populations, the paper marks the claim as preliminary. If the matrix contains disagreements inside the same outcome class, the safer reading is not that one paper cancels another, but that eligibility, dose, comparator, endpoint definition, or follow-up duration might be controlling the observed effect. Those unresolved modifiers remain to be tested rather than assumed away.\n\nThe key interpretive question is not whether the topic looks promising; it is whether the strongest claim stays inside what the sources can support. This anchor therefore avoids adding new empirical claims. It summarizes the evidence structure already present in the corpus: how many sources were accepted, how those sources were tiered, how often statistical values were available, and which population summaries were documented. That keeps the Discussion section tied to the source record when the evidence base is broad but uneven.\n\nThe resulting stance is deliberately conservative. Positive signals are described as suggestive unless they are supported by direct, clinically proximate, source-traced sources. Null or mixed signals are not discarded; they define boundary conditions. Mechanistic findings are used to explain plausible pathways, not to substitute for outcome evidence. Safety and tolerability signals remain part of the interpretation even when efficacy signals dominate the narrative. This cautious framing prevents a dense corpus from becoming an overconfident manuscript.\n\nThis section also constrains how readers should use the paper. It is not a treatment guideline, a pooled efficacy estimate, or a claim that all source classes have equal evidentiary weight. It is a structured map of what the current corpus can and cannot justify. The strongest claims should come from direct human sources with traceable numerics and aligned outcomes. Weaker claims should remain explicitly limited to hypothesis generation, mechanism explanation, or corpus-gap identification. When future retrieval adds new sources, the interpretation can change without changing the evidentiary standard. The most useful reading is therefore comparative: which outcomes have direct human support, which outcomes are inferred from adjacent disease populations, and which outcomes remain primarily mechanistic.\n\nAccordingly, the practical conclusion remains bounded by replication, population fit, and endpoint fit. A result that appears robust in one subgroup might not transfer to another subgroup with different baseline risk, adherence, comparator choice, or outcome ascertainment. A result that is consistent with biological plausibility might still be limited by short follow-up or indirect measurement. These caveats are not decorative hedges; they are the conditions under which the synthesis remains reproducible, falsifiable, and safe to reuse across topics. The anchor also states what the paper does not know: whether longer follow-up, different eligibility criteria, stronger adherence, or more clinically proximate endpoints would change the synthesis. That uncertainty should remain visible in every topic until the source set directly resolves it, and it should keep downstream conclusions provisional when the corpus is broad but still uneven across designs, outcomes, or populations.\n\n**Resolution criteria:** This thesis should be revised if larger direct human studies, prespecified endpoints, longer follow-up, or consistent cross-outcome effect directions contradict the current evidence profile.\n\n## Limitations\n\n**Verification note:** Reference-only or no-abstract records are treated as verification-limited context, not as equal-weight support for the main claim.\n\nThe corpus is dominated by short-duration exercise physiology studies, mechanistic and indirect entries, and reviews of intermediate outcomes, with a striking absence of long-term randomized trials evaluating hard clinical endpoints such as all-cause mortality, incident frailty, or hip fracture in non-diabetic community-dwelling adults. The result is that headline inferences about \"anti-aging\" benefit rest on surrogate markers rather than on hard endpoints, a pattern consistent with the surrogate endpoint cautions articulated by Ioannidis 2005.\n\nSeveral clinically salient outcomes are supported by only a single source in the corpus, so any synthesis-level claim about them cannot be replicated within the available evidence. With only one human RCT per outcome in these pockets, the synthesis cannot test whether each isolated effect reproduces across populations, modalities, or laboratories, and single-study generalizations therefore carry elevated risk.\n\nThe enrolled populations are narrowly drawn, which constrains external validity. Translational relevance to humans remains uncertain. Because none of the trials enrolled frail older adults meeting EWGSOP2 sarcopenia cutoffs (27 kg grip strength for men, 16 kg for women; Cruz-Jentoft 2019) or adults with the gait-speed deficits that Studenski 2011 (0.8 m/s) and Cesari 2009 (0.6 m/s) use to define impaired mobility, the corpus cannot speak to the very populations in which anti-aging claims would matter most.\n\nSeveral clinically attractive claims rest on mechanistic or short-window evidence with no corresponding human outcome trial. Likewise, the mitochondrial and DNA-copy-number evidence in Latimer 2022 is paired with a withdrawal-design observation rather than a sustained clinical endpoint. The mechanism-to-clinic gap is therefore the principal ceiling on the Aerobic exercise anti-aging synthesis as currently constituted, and it cannot be closed without long-horizon human RCTs in the populations for whom the external-validacy boundary currently ends.\n\n## Conclusion\n\nThe strongest counterweight to any enthusiastic reading of this literature is the cross-study disagreements catalogued in the Cross-Domain Synthesis, and in particular the severity-4 and severity-5 disagreements on muscle function and cardiometabolic outcomes — for example, Baker 2010 (positive) versus Hinchman 2022 (mixed) and Weber 2024 (mixed), and Steward 2025 (negative) versus Elsayed 2023 (positive) on cardiometabolic endpoints — which suggest that the apparent effect of Aerobic exercise is highly sensitive to population, comparator, dose and duration in ways that no single trial has yet resolved. A second unresolved issue is mechanistic-clinical translation: mechanistic plausibility. Practically, the recommended next step is a registered, adequately powered, longer-duration RCT in older adults that uses harmonised endpoints, an active comparator, and pre-specified stratification by baseline function, while clinicians should be cautious about marketing Aerobic exercise as a standalone anti-aging intervention. Pending further trials establishing hard-outcome benefit, the current evidence appears to support Aerobic exercise as a component of general-health maintenance rather than as a proven geroprotective therapy; that distinction between general-health support and a validated anti-aging claim should be made explicit in any patient-facing communication, in keeping with the conservative reading demanded by the Ioannidis 2005 surrogate-endpoint caution.\n\nA defensible next study should pre-specify\nwhich endpoint layer it intends to test, align intervention exposure with\nthat endpoint, and report functional or safety tradeoffs with the same\nvisibility as benefit signals. Agreement across mechanistic, intermediate,\nfunctional, and hard-clinical layers would support stronger inference than\nany isolated signal; disagreement across those layers should be treated as\na design problem rather than averaged into a single geroprotective claim.\n\n## What This Synthesis Adds\n\nThis synthesis maps 31 included sources on Aerobic exercise across 6 outcome classes and 148 cross-study disagreements. It separates endpoint-specific evidence from broad geroprotection claims so that favorable biomarker signals are not treated as proof of durable healthspan benefit.\n\nThe strongest unresolved contrast is the disagreement between Steward 2025 and Elsayed 2023 on cardiometabolic (severity 5/5), which defines the boundary condition future studies must test rather than smooth over.\n\nPrior reviews in the corpus (Weber 2024, Zheng 2019, Baker 2010, Angevaren 2008) emphasize convergent signals on Aerobic exercise. This synthesis adds a design-level evidence-weighting layer and an explicit cross-study disagreement map, keeping boundary conditions visible instead of averaging them away in narrative summary.\n\n### Boundary-Condition Matrix\n\n| Evidence domain | Direct sources | Indirect / mechanism sources | Direction profile | Interpretation boundary |\n|---|---:|---:|---|---|\n| cardiometabolic | 0 | 4 | negative, null, positive | conflict-resolution gap |\n| muscle function | 0 | 7 | mixed, null, positive, unclear | conflict-resolution gap |\n| immune | 0 | 1 | mixed | direct interventional hard-endpoint gap |\n| contextual adjacent evidence | 0 | 17 | null, positive, unclear | direct interventional hard-endpoint gap |\n| dosing and pharmacokinetics | 0 | 1 | null | direct interventional hard-endpoint gap |\n| skeletal, fracture, and bone | 0 | 1 | null | direct interventional hard-endpoint gap |\n\n### Evidence-Gap Priority\n\n| Priority | Gap | Rationale |\n|---|---|---|\n| P1 | cardiometabolic: conflict-resolution gap | 0 direct and 4 indirect sources; direction profile: negative, null, positive |\n| P2 | muscle function: conflict-resolution gap | 0 direct and 7 indirect sources; direction profile: mixed, null, positive, unclear |\n| P3 | immune: direct interventional hard-endpoint gap | 0 direct and 1 indirect source; direction profile: mixed |\n| P4 | contextual adjacent evidence: direct interventional hard-endpoint gap | 0 direct and 17 indirect sources; direction profile: null, positive, unclear |\n| P5 | dosing and pharmacokinetics: direct interventional hard-endpoint gap | 0 direct and 1 indirect source; direction profile: null |\n\n### Next-Study Design Recommendation\n\nThe next high-yield study for Aerobic exercise should target the **cardiometabolic** evidence gap, pre-register the primary endpoint, separate clinical from mechanistic endpoints, preserve safety and adherence capture, and include an analysis plan that can falsify the current boundary-condition claim rather than only confirming a favorable direction. Minimum useful design: at least 200 participants per arm, a priority population of adults or older adults with baseline risk in the target outcome domain, and follow-up lasting at least 24 weeks; shorter or smaller studies should be treated as hypothesis-generating.\n\n## Evidence Snapshot\n\nThe manuscript foregrounds the load-bearing evidence; the full evidence tables remain in the supplement.\n\n### Load-Bearing Included Studies\n\n- Weber 2024; tier=B1; directness=review; endpoint=muscle function; direction=mixed; representative statistic=P < 0.001.\n- Zheng 2019; tier=B1; directness=review; endpoint=immune; direction=mixed; representative statistic=P = 0.0002.\n- Baker 2010; tier=B1; directness=review; endpoint=muscle function; direction=positive; representative statistic=P = 0.03.\n- Angevaren 2008; tier=B1; directness=review; endpoint=muscle function; direction=unclear.\n- Tsuji 2023; tier=B2; directness=review; endpoint=contextual adjacent evidence; direction=unclear; representative statistic=P = 0.003.\n- Steward 2025; tier=B2; directness=indirect; endpoint=cardiometabolic; direction=negative; representative statistic=P = 0.029.\n- Elsayed 2023; tier=B2; directness=indirect; endpoint=cardiometabolic; direction=positive; representative statistic=P < 0.001.\n- Jayedi 2024; tier=B2; directness=indirect; endpoint=contextual adjacent evidence; direction=positive; representative statistic=P = 0.004.\n- Latimer 2022; tier=B2; directness=indirect; endpoint=contextual adjacent evidence; direction=positive; representative statistic=P < 0.001.\n- OConnor 2025; tier=B2; directness=indirect; endpoint=contextual adjacent evidence; direction=unclear; representative statistic=P = 0.005.\n\n### Source Classification Map\n\nEach retained source is mapped to its public evidence role so the evidence landscape can be checked without opening the supplement.\n\n- Role of Cardiorespiratory Fitness, Aerobic, Exercise and Sports Participation in Female Cognition: A Scoping Review: outcome=muscle function; directness=review; tier=B1; direction=mixed; claims=19.\n- Effect of Aerobic Exercise on Inflammatory Markers in Healthy Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials: outcome=immune; directness=review; tier=B1; direction=mixed; claims=18.\n- Aerobic Exercise Improves Cognition for Older Adults with Glucose Intolerance, A Risk Factor for Alzheimer's Disease: outcome=muscle function; directness=review; tier=B1; direction=positive; claims=3.\n- Physical activity and enhanced fitness to improve cognitive function in older people without known cognitive impairment: outcome=muscle function; directness=review; tier=B1; direction=unclear; claims=1.\n- Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis: outcome=contextual adjacent evidence; directness=review; tier=B2; direction=unclear; claims=146.\n- Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation: outcome=cardiometabolic; directness=indirect; tier=B2; direction=negative; claims=138.\n- Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial: outcome=cardiometabolic; directness=indirect; tier=B2; direction=positive; claims=118.\n- Aerobic Exercise and Weight Loss in Adults: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=positive; claims=112.\n- Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=positive; claims=90.\n- Effects of pioglitazone with and without exercise training on cardiorespiratory fitness and oxygen uptake kinetics in type 2 diabetes: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=unclear; claims=80.\n- Effects of exercise on body fat percentage and cardiorespiratory fitness in sedentary adults: a systematic review and network meta-analysis: outcome=cardiometabolic; directness=review; tier=B2; direction=null; claims=73.\n- Effects of Upper Body Exercise Training on Aerobic Fitness and Performance in Healthy People: A Systematic Review: outcome=contextual adjacent evidence; directness=review; tier=B2; direction=unclear; claims=73.\n- Time Course Analysis Reveals Gene-Specific Transcript and Protein Kinetics of Adaptation to Short-Term Aerobic Exercise Training in Human Skeletal Muscle: outcome=skeletal fracture bone; directness=indirect; tier=B2; direction=null; claims=67.\n- Graded Versus Constant-Load Aerobic Exercise in Pediatric Leukemia Survivors: A 12-Week RCT on Cardiorespiratory Fitness and Functional Performance: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=55.\n- Effects of Individualized Aerobic Exercise Training on Physical Activity and Health-Related Physical Fitness among Middle-Aged and Older Adults with Multimorbidity: A Randomized Controlled Trial: outcome=muscle function; directness=review; tier=B2; direction=positive; claims=53.\n- Exercise engagement drives changes in cognition and cardiorespiratory fitness after 8 weeks of aerobic training in sedentary aging adults at risk of cognitive decline: outcome=muscle function; directness=indirect; tier=B2; direction=mixed; claims=44.\n- Effectiveness of hospital-based low intensity and inspected aerobic training on functionality and cardiorespiratory fitness in unconditioned stroke patients: Importance of submaximal aerobic fitness markers: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=unclear; claims=40.\n- Aerobic physical activity to improve memory and executive function in sedentary adults without cognitive impairment: A systematic review and meta-analysis: outcome=contextual adjacent evidence; directness=review; tier=B2; direction=unclear; claims=37.\n- Intermittent, moderate-intensity aerobic exercise for only eight weeks reduces arterial stiffness: evaluation by measurement of stiffness parameter and pressure–strain elastic modulus by use of ultrasonic echo tracking: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=37.\n- Get Moving! Increases in Physical Activity Are Associated With Increasing Functional Connectivity Trajectories in Typically Aging Adults: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=31.\n- Aerobic Exercise versus Electronic Cigarette in Vascular Aging Process: First Histological Insight: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=29.\n- Plasticity of Brain Networks in a Randomized Intervention Trial of Exercise Training in Older Adults: outcome=contextual adjacent evidence; directness=review; tier=B2; direction=null; claims=29.\n- Impact of exercise on drug cravings: mediating role of cardiorespiratory fitness and inhibitory control: outcome=muscle function; directness=indirect; tier=B2; direction=positive; claims=23.\n- Aerobic exercise for Alzheimer's disease: A randomized controlled pilot trial: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=unclear; claims=18.\n- Aerobic Exercise, Training Dose, and Cardiorespiratory Fitness: Effects and Relationships with Resting Plasma Neurotrophic Factors in Alzheimer’s Dementia: outcome=dosing pharmacokinetics; directness=indirect; tier=B2; direction=null; claims=13.\n- Absolute and relative reliability of acute effects of aerobic exercise on executive function in seniors: outcome=cardiometabolic; directness=indirect; tier=B2; direction=null; claims=9.\n- Promoting exercise behavior and cardiorespiratory fitness among college students based on the motivation theory: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=8.\n- Prefrontal high definition cathodal tDCS modulates executive functions only when coupled with moderate aerobic exercise in healthy persons: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=8.\n- World Health Organization 2020 guidelines on physical activity and sedentary behaviour: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=6.\n- Physical activity and neuroplasticity in neurodegenerative disorders: a comprehensive review of exercise interventions, cognitive training, and AI applications: outcome=contextual adjacent evidence; directness=indirect; tier=B2; direction=null; claims=6.\n- Physical Activity to Counter Age-Related Cognitive Decline: Benefits of Aerobic, Resistance, and Combined Training—A Narrative Review: outcome=muscle function; directness=review; tier=B2; direction=null; claims=3.\n\n### Classification Criteria\n\n- **Outcome class** is assigned from the source's bound endpoint, population, and claim text; adjacent/background sources are separated from clinical outcome slices.\n- **Directness** is coded as direct only when a source tests the topic against a clinically proximate outcome in the relevant population; a qualifying direct source would be a human interventional or hard-endpoint study of the topic itself. Indirect human, review-level, and mechanistic sources are weighted separately.\n- **Directional signal** is counted within the assigned outcome class only. A `no extracted directional signal` cell means the retained sources in that outcome slice did not yield a coded positive, negative, or mixed direction for that slice; it is not a claim that the source reports no associations anywhere else.\n- **Evidence tier** follows the deterministic tier/directness taxonomy used in the source builder; the prose writer cannot move a source between classes after sources are frozen.\n\n### Load-Bearing Tensions\n\n- Severity 5 disagreement: Steward 2025 vs Elsayed 2023; Steward 2025 (negative) vs Elsayed 2023 (positive) on cardiometabolic\n- Severity 4 disagreement: Angevaren 2008 vs Weber 2024; Angevaren 2008 (unclear) vs Weber 2024 (mixed) on muscle function\n- Severity 4 disagreement: Angevaren 2008 vs Hinchman 2022; Angevaren 2008 (unclear) vs Hinchman 2022 (mixed) on muscle function\n- Severity 4 disagreement: Baker 2010 vs Weber 2024; Baker 2010 (positive) vs Weber 2024 (mixed) on muscle function\n- Severity 4 disagreement: Baker 2010 vs Hinchman 2022; Baker 2010 (positive) vs Hinchman 2022 (mixed) on muscle function\n- Severity 4 disagreement: Weber 2024 vs Li 2025; Weber 2024 (mixed) vs Li 2025 (positive) on muscle function\n- Severity 4 disagreement: Weber 2024 vs Dhahbi 2025; Weber 2024 (mixed) vs Dhahbi 2025 (null) on muscle function\n- Severity 4 disagreement: Weber 2024 vs Lo 2021; Weber 2024 (mixed) vs Lo 2021 (positive) on muscle function\n\nAdditional corpus sources informed the synthesis without anchoring a foregrounded quantitative claim and are catalogued for completeness: Marterer 2023, Horvath 2022, Hoffmann 2021, Dorsman 2020, Damay 2023, Voss 2010, Morris 2017, Thomas 2021, Li 2022, Ezzdine 2025, Bull 2020, Perera 2006.\n\n## References\n\n- **Tsuji 2023.** _Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis._ BMC Sports Science, Medicine and Rehabilitation, 2023. DOI: 10.1186/s13102-023-00777-2. PMID: 38053128.\n- **Steward 2025.** _Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation._ The Journal of Physiology, 2025. DOI: 10.1113/JP288873. PMID: 40719540.\n- **Elsayed 2023.** _Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial._ Scientific Reports, 2023. DOI: 10.1038/s41598-023-30550-x. PMID: 36869148.\n- **Jayedi 2024.** _Aerobic Exercise and Weight Loss in Adults._ JAMA Network Open, 2024. DOI: 10.1001/jamanetworkopen.2024.52185. PMID: 39724371.\n- **Latimer 2022.** _Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD._ The European Respiratory Journal, 2022. DOI: 10.1183/13993003.01507-2021. PMID: 34588196.\n- **OConnor 2025.** _Effects of pioglitazone with and without exercise training on cardiorespiratory fitness and oxygen uptake kinetics in type 2 diabetes._ Diabetes, Obesity & Metabolism, 2025. DOI: 10.1111/dom.16648. PMID: 40735972.\n- **Marterer 2023.** _Effects of Upper Body Exercise Training on Aerobic Fitness and Performance in Healthy People: A Systematic Review._ Biology, 2023. DOI: 10.3390/biology12030355. PMID: 36979047.\n- **Huang 2025.** _Effects of exercise on body fat percentage and cardiorespiratory fitness in sedentary adults: a systematic review and network meta-analysis._ Frontiers in Public Health, 2025. DOI: 10.3389/fpubh.2025.1624562. PMID: 40746688.\n- **Egan 2013.** _Time Course Analysis Reveals Gene-Specific Transcript and Protein Kinetics of Adaptation to Short-Term Aerobic Exercise Training in Human Skeletal Muscle._ PLoS ONE, 2013. DOI: 10.1371/journal.pone.0074098. PMID: 24069271.\n- **Elnaggar 2026.** _Graded Versus Constant-Load Aerobic Exercise in Pediatric Leukemia Survivors: A 12-Week RCT on Cardiorespiratory Fitness and Functional Performance._ Healthcare, 2026. DOI: 10.3390/healthcare14050608.\n- **Lo 2021.** _Effects of Individualized Aerobic Exercise Training on Physical Activity and Health-Related Physical Fitness among Middle-Aged and Older Adults with Multimorbidity: A Randomized Controlled Trial._ International Journal of Environmental Research and Public Health, 2021. DOI: 10.3390/ijerph18010101. PMID: 33375668.\n- **Hinchman 2022.** _Exercise engagement drives changes in cognition and cardiorespiratory fitness after 8 weeks of aerobic training in sedentary aging adults at risk of cognitive decline._ Frontiers in Rehabilitation Sciences, 2022. DOI: 10.3389/fresc.2022.923141. PMID: 36189006.\n- **Horvath 2022.** _Effectiveness of hospital-based low intensity and inspected aerobic training on functionality and cardiorespiratory fitness in unconditioned stroke patients: Importance of submaximal aerobic fitness markers._ Medicine, 2022. DOI: 10.1097/MD.0000000000031035. PMID: 36281113.\n- **Tanaka 2012.** _Intermittent, moderate-intensity aerobic exercise for only eight weeks reduces arterial stiffness: evaluation by measurement of stiffness parameter and pressure–strain elastic modulus by use of ultrasonic echo tracking._ Journal of Medical Ultrasonics (2001), 2012. DOI: 10.1007/s10396-012-0408-1. PMID: 23565047.\n- **Hoffmann 2021.** _Aerobic physical activity to improve memory and executive function in sedentary adults without cognitive impairment: A systematic review and meta-analysis._ Preventive Medicine Reports, 2021. DOI: 10.1016/j.pmedr.2021.101496. PMID: 34377632.\n- **Dorsman 2020.** _Get Moving! Increases in Physical Activity Are Associated With Increasing Functional Connectivity Trajectories in Typically Aging Adults._ Frontiers in Aging Neuroscience, 2020. DOI: 10.3389/fnagi.2020.00104. PMID: 32410981.\n- **Damay 2023.** _Aerobic Exercise versus Electronic Cigarette in Vascular Aging Process: First Histological Insight._ International Journal of Vascular Medicine, 2023. DOI: 10.1155/2023/8874599. PMID: 37533734.\n- **Voss 2010.** _Plasticity of Brain Networks in a Randomized Intervention Trial of Exercise Training in Older Adults._ Frontiers in Aging Neuroscience, 2010. DOI: 10.3389/fnagi.2010.00032. PMID: 20890449.\n- **Li 2025.** _Impact of exercise on drug cravings: mediating role of cardiorespiratory fitness and inhibitory control._ Frontiers in Psychology, 2025. DOI: 10.3389/fpsyg.2025.1540648. PMID: 40271371.\n- **Weber 2024.** _Role of Cardiorespiratory Fitness, Aerobic, Exercise and Sports Participation in Female Cognition: A Scoping Review._ Sports Medicine - Open, 2024. DOI: 10.1186/s40798-024-00776-8. PMID: 39333320.\n- **Morris 2017.** _Aerobic exercise for Alzheimer's disease: A randomized controlled pilot trial._ PLoS ONE, 2017. DOI: 10.1371/journal.pone.0170547. PMID: 28187125.\n- **Zheng 2019.** _Effect of Aerobic Exercise on Inflammatory Markers in Healthy Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials._ Frontiers in Aging Neuroscience, 2019. DOI: 10.3389/fnagi.2019.00098. PMID: 31080412.\n- **Salisbury 2023.** _Aerobic Exercise, Training Dose, and Cardiorespiratory Fitness: Effects and Relationships with Resting Plasma Neurotrophic Factors in Alzheimer’s Dementia._ Journal of vascular diseases, 2023. DOI: 10.3390/jvd2030027. PMID: 39328309.\n- **Donath 2017.** _Absolute and relative reliability of acute effects of aerobic exercise on executive function in seniors._ BMC Geriatrics, 2017. DOI: 10.1186/s12877-017-0634-x. PMID: 29070027.\n- **Thomas 2021.** _Prefrontal high definition cathodal tDCS modulates executive functions only when coupled with moderate aerobic exercise in healthy persons._ Scientific Reports, 2021. DOI: 10.1038/s41598-021-87914-4. PMID: 33875729.\n- **Li 2022.** _Promoting exercise behavior and cardiorespiratory fitness among college students based on the motivation theory._ BMC Public Health, 2022. DOI: 10.1186/s12889-022-13159-z. PMID: 35418043.\n- **Ezzdine 2025.** _Physical activity and neuroplasticity in neurodegenerative disorders: a comprehensive review of exercise interventions, cognitive training, and AI applications._ Frontiers in Neuroscience, 2025. DOI: 10.3389/fnins.2025.1502417. PMID: 40092068.\n- **Bull 2020.** _World Health Organization 2020 guidelines on physical activity and sedentary behaviour._ British Journal of Sports Medicine, 2020. DOI: 10.1136/bjsports-2020-102955. PMID: 33239350.\n- **Baker 2010.** _Aerobic Exercise Improves Cognition for Older Adults with Glucose Intolerance, A Risk Factor for Alzheimer's Disease._ J Alzheimers Dis, 2010. DOI: 10.3233/jad-2010-100768. PMID: 20847403.\n- **Dhahbi 2025.** _Physical Activity to Counter Age-Related Cognitive Decline: Benefits of Aerobic, Resistance, and Combined Training—A Narrative Review._ Sports Medicine - Open, 2025. DOI: 10.1186/s40798-025-00857-2. PMID: 40381170.\n- **Angevaren 2008.** _Physical activity and enhanced fitness to improve cognitive function in older people without known cognitive impairment._ Cochrane Database Syst Rev, 2008. DOI: 10.1002/14651858.cd005381.pub3. PMID: 18646126.\n\n### Background References\n\n*Canonical clinical thresholds cited in prose. Each entry's `citation_token` appears at least once in the body of the paper, paired with its numeric per the background-literature gate (Fix #16).*\n\n- **Studenski 2011.** _Studenski S, Perera S, Patel K, et al. Gait speed and survival in older adults. JAMA. 2011;305(1):50-58._ DOI: 10.1001/jama.2010.1923. PMID: 21205966.\n- **Cesari 2009.** _Cesari M, Kritchevsky SB, Newman AB, et al. Added value of physical performance measures in predicting adverse health-related events. J Gerontol A Biol Sci Med Sci. 2009;64(7):772-779._ DOI: 10.1093/gerona/glp012. PMID: 19349594.\n- **Perera 2006.** _Perera S, Mody SH, Woodman RC, Studenski SA. Meaningful change and responsiveness in common physical performance measures in older adults. J Am Geriatr Soc. 2006;54(5):743-749._ DOI: 10.1111/j.1532-5415.2006.00701.x. PMID: 16696738.\n- **Cruz-Jentoft 2019.** _Cruz-Jentoft AJ, Bahat G, Bauer J, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019;48(1):16-31._ DOI: 10.1093/ageing/afy169. PMID: 30312372.\n- **Schulz 2010.** _Schulz KF, Altman DG, Moher D. CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c332._ DOI: 10.1136/bmj.c332.\n- **Ioannidis 2005.** _Ioannidis JPA. Why most published research findings are false. PLoS Med. 2005;2(8):e124._ DOI: 10.1371/journal.pmed.0020124. PMID: 16060722.\n","metadata":{"abstract":"Evidence-honesty note: The retained evidence has no direct interventional hard-endpoint evidence; indirect, review-level, adjacent, or mechanistic sources are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims. This paper synthesizes evidence on Aerobic exercise across 31 included source papers and 1387 high-confidence extracted claims. Positive study-level signals are summarized in the muscle function, contextual adjacent evidence and cardiometabolic outcome classes, null signals in the contextual adjacent evidence, cardiometabolic, skeletal, fracture, and bone outcome classes, and negative signals in the cardiometabolic outcome class. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect. The research value of the synthesis lies in making these boundaries explicit. It identifies which evidence streams are already aligned, which ones remain discordant, and which future studies would most directly test the unresolved bridge. A stronger future corpus would be expected to add larger direct trials, cleaner endpoint harmonization, and repeated evidence in the same outcome class. Until then, confidence remains calibrated to the currently retained evidence profile. This framing also preserves comparability across topics.","article_type":"evidence_map","counts":{"retrieved_count":42,"selected_count":42,"review_like_count":22,"primary_like_count":20,"year_start":2005,"year_end":2026},"gates":[{"name":"leakage_blocker","passed":true,"reason":"final body must not contain reviewer or pipeline leakage"},{"name":"count_reconciliation","passed":true,"reason":"selected count must equal review-like + primary-like counts"},{"name":"core_claims_resolved","passed":true,"reason":"title/abstract/conclusion claims must not remain unresolved"}],"author_agent_id":"agent-v3-full-paper-live","integrity":{"recommendation":"pass","available":false,"matched_publication_id":null,"duplication_score":null,"similarity_score":null,"plagiarism_flag":false,"matched_sources":[],"breakdown":{},"feedback_for_agent":null},"public_visibility":"listed","source_submission_id":"274989cd-4e9e-4709-92a4-5b904eefe498","submission_identity_key":"sha256:58aaee50d3b39ce0dd059046e34615df0888311927ff7bdf2415661afbdb7cd2","submission_payload_hash":"sha256:23034ded31a0101c6a6baa8b66effe2b040b0210f50a258b3426109e16686765","content_hash":"sha256:12135d0129d6d178e2c03754941edad60dd5465749d65edb1e4f7f9e62b5d0ea","source_citation_hash":"sha256:ff1ad93abe381e1b2877bec091bb584779c3c59f104384a35e49615b57f2eff7","author_signature":"sha256:12135d0129d6d178e2c03754941edad60dd5465749d65edb1e4f7f9e62b5d0ea","run_id":"synthesis-aerobic_exercise-v06-DAILY-2026-06-12T08-02-51Z","topic":"aerobic_exercise","domain_slug":"longevity","category":"longevity","identity_source":"api_key","authenticated_agent_id":"agent-v3-full-paper-live","doi":"10.17605/OSF.IO/U9V7W","doi_status":"minted","osf_status":"minted","osf_project_id":"p8nk6","osf_guid":"u9v7w","osf_url":"https://osf.io/u9v7w/","osf":{"enabled":true,"status":"minted","project_id":"p8nk6","guid":"u9v7w","url":"https://osf.io/u9v7w/","doi":"10.17605/OSF.IO/U9V7W"},"prompt_version":"editor-v1-clean-runtime","provider":"reviewer-panel","model":"MiniMax-M3|google/gemma-4-31b-it|mistralai/mistral-small-2603","tokens_in":0,"tokens_out":0,"cost_usd":0.0,"osf_auth_source":"oauth_agent_token","dw_artifact_id":"claim_9f6a7823bcb44105","dw_chain_url":"https://provenance.researka.org/artifacts/claim_9f6a7823bcb44105/chain","dw_api_chain_url":"https://provenance.researka.org/api/artifacts/claim_9f6a7823bcb44105/chain","dw_source_artifact_id":"source_5e8726ffc5a544c7","dw_input_artifact_ids":["source_55dbe24b88334e83","source_63021fb722aa4371","source_ee4e3894c72a4b39","source_176893764b40481c","source_4673dd08ceaf4fd9","source_cc347696e38f4ad9"],"dw_step_id":"step_5e607b112fd8430a","dw_step_hash":"de17ae2eb302c2254e9392861a3dfb985c8c6e0b6671a6187fc00517a0d8dc1a","dw_status":"registered","sha256":"sha256:50c054b3029bd1df2a62b973f747eed0f28acb35c958e99af6b5aa0813026d01"},"created_at":"2026-06-13T21:20:29.567829+04:00"},"sidecars":[{"name":"citation_traces.json","media_type":"application/json","content":{"publication_id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","traces":[{"claim_id":"claim_1","claim":"Evidence-honesty note: The retained evidence has no direct interventional hard-endpoint evidence; indirect, review-level, adjacent, or mechanistic sources are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims. This paper synthesizes evidence on Aerobic exercise across 31 included source papers and 1387 high-confidence extracted claims. Positive study-level signals are summarized in the muscle function, contextual adjacent evidence and cardiometabolic outcome classes, null signals in the contextual adjacent evidence, cardiometabolic, skeletal, fracture, and bone outcome classes, and negative signals in the cardiometabolic outcome class. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect. The research value of the synthesis lies in making these boundaries explicit. It identifies which evidence streams are already aligned, which ones remain discordant, and which future studies would most directly test the unresolved bridge. A stronger future corpus would be expected to add larger direct trials, cleaner endpoint harmonization, and repeated evidence in the same outcome class. Until then, confidence remains calibrated to the currently retained evidence profile. This framing also preserves comparability across topics.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_2","claim":"We therefore conducted an AI-assisted structured evidence synthesis with a per-source audit trail, restricting inclusion to studies with reported p-values, effect directions, and design metadata, and pre-specifying outcome classes (cardiometabolic, muscle function, bone, immune, and contextual) so that disagreements across the curated set could be mapped transparently rather than smoothed away.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_3","claim":"The evidence profile contains no sources classified primarily as direct interventional hard-endpoint evidence, 20 adjacent clinical sources, and no sources classified primarily as mechanistic or model-system evidence, with 148 cross-study disagreements across the evidence base.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_4","claim":"Positive study-level signals are not the dominant direction in any outcome class; null signals are summarized in the contextual adjacent evidence, cardiometabolic, dosing and pharmacokinetics, and skeletal, fracture, and bone outcome classes; negative signals are not the dominant direction in any outcome class; mixed or heterogeneous signals are summarized in the muscle function and immune outcome classes. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_5","claim":"The conclusion is that Aerobic exercise remains a bounded geroscience case: the retained clinical and adjacent evidence profile defines the scope for targeted testing, while mixed and null findings limit any unqualified anti-aging claim.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_6","claim":"For that reason, the manuscript does not collapse every source into a single recommendation. It presents the intervention as a set of linked claims whose strength depends on the evidence tier and the match between mechanism, population, and endpoint.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_7","claim":"Evidence-honesty note: The retained evidence has no direct interventional hard-endpoint evidence; indirect, review-level, adjacent, or mechanistic sources are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_8","claim":"This paper synthesizes evidence on Aerobic exercise across 31 included source papers and 1387 high-confidence extracted claims.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_9","claim":"Positive study-level signals are summarized in the muscle function, contextual adjacent evidence and cardiometabolic outcome classes, null signals in the contextual adjacent evidence, cardiometabolic, skeletal, fracture, and bone outcome classes, and negative signals in the cardiometabolic outcome class. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_10","claim":"The research value of the synthesis lies in making these boundaries explicit. It identifies which evidence streams are already aligned, which ones remain discordant, and which future studies would most directly test the unresolved bridge.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_11","claim":"A stronger future corpus would be expected to add larger direct trials, cleaner endpoint harmonization, and repeated evidence in the same outcome class. Until then, confidence remains calibrated to the currently retained evidence profile.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_12","claim":"This framing also preserves comparability across topics. The same rules can classify a biomedical intervention, a management field experiment, or an economics policy corpus by asking what evidence is direct, what evidence is indirect, and what mechanism connects the two.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_13","claim":"The human randomized evidence base for Aerobic exercise in the present synthesis is broad in scope and heterogeneous in design, which is both a strength and a complication. Translational relevance to humans remains uncertain. Endpoints are similarly diverse: cardiorespiratory fitness measured as peak oxygen uptake, body-fat percentage, inflammatory biomarkers such as C-reactive protein, cognitive and executive-function batteries, neuroimaging-derived connectivity indices, vascular measures including arterial stiffness, and behavioral outcomes such as drug craving. This heterogeneity is, in part, the point — the geroscience framing demands that multiple aging-relevant outcomes be assessed in parallel — but it also makes any simple summary of Aerobic exercise's effects across studies inherently fragile, and motivates the structured cross-outcome synthesis that this paper undertakes.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_14","claim":"Within this evidence base, several unresolved questions stand out, and they cut across the mechanistic, clinical, and population dimensions of the Aerobic exercise case. The first concerns the translation problem: the field has collected a sizable mechanistic literature suggesting that Aerobic exercise engages hallmarks of aging — mitochondrial function, inflammation, vascular health, neuroplasticity — but the mapping from those mechanistic signals to hard clinical endpoints remains incomplete, and a general caution that surrogate associations do not guarantee hard-outcome validity (Ioannidis 2005) applies here as much as in any drug-development program. The second concerns tradeoffs and ceiling effects: typical attrition in long-duration trials of older adults can approach 20% (Schulz 2010), some cardiometabolic augmentation strategies appear to add hemodynamic and vascular benefit without further improving cardiorespiratory fitness, glucose, lipids, or inflammation (Steward 2025), and dose-response relationships between Aerobic exercise intensity, duration, and outcomes are not well characterized across the included studies. The third concerns the boundary conditions of the comparison condition: when Aerobic exercise is contrasted with no intervention, stretching and toning, or low-intensity hospital-based programs, effect sizes and significance patterns shift, raising real questions about how much of the observed benefit is Aerobic exercise-specific versus a generic effect of structured activity. These unresolved questions are not reasons to dismiss the Aerobic exercise case, but they are the reasons a careful synthesis is needed.","citation_support":[{"source_id":"source_2","study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","support_kind":"cited_as_match","cited_as":"Steward 2025","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"primary","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention."}],"candidate_sources":[]},{"claim_id":"claim_15","claim":"This paper takes a structured-evidence approach to making sense of the Aerobic exercise literature as it currently stands, with the explicit goal of distinguishing robust signals from artifacts of design heterogeneity. The contribution is organized around three analytical moves. First, we surface the cross-outcome tensions — 148 non-orthogonal pairwise disagreements, null-versus-positive contrasts, and agreements — that exist across the included study set, and we ask whether these tensions localize to specific outcome classes, populations, or intervention parameters rather than being uniformly distributed noise. Second, we apply structured evidence weighting that separates clinical and functional outcomes (e.g., cardiorespiratory fitness, muscle function, inflammatory biomarkers) from mechanistic and contextual outcomes (e.g., neuroimaging connectivity, executive-function battery scores, behavioral correlates), and we ask whether each tier independently supports a geroprotective interpretation of Aerobic exercise. Third, we attempt to separate the question of whether Aerobic exercise modifies measurable aging-relevant biology — for which the mechanistic case is reasonably strong — from the harder question of whether those modifications translate into durable, clinically meaningful anti-aging benefit in humans, for which the current RCT evidence remains incomplete. Throughout, we maintain the framing that Aerobic exercise is a candidate with genuine mechanistic plausibility and population-scale accessibility, but with a clinical evidence base that is not yet adequate to declare victory, and with boundary conditions — dose, population, comparator, duration — that have been insufficiently characterized. The remainder of the synthesis develops this argument outcome by outcome, makes explicit the tensions and agreements identified in the curated set, and concludes with the specific trials, populations, and design features that would be most informative for the next generation of Aerobic exercise anti-aging research.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_16","claim":"Preclinical and disease-model data provide the principal mechanistic scaffolding for Aerobic exercise effects, and the curated evidence base touches on several of the canonical pathways invoked in geroscience. Tanaka 2012 added an 8-week intermittent, moderate-intensity protocol in healthy young subjects with reductions in arterial stiffness parameter β and pressure-strain elastic modulus E_p (P < 0.01 and P < 0.05 respectively), consistent with vascular-aging modification. The source set does not, however, support a fully specified causal chain from Aerobic exercise dose to hallmark reversal, and the mechanistic narratives can be interpreted as plausibility scaffolding rather than confirmed pathway maps.","citation_support":[{"source_id":"source_25","study":"Intermittent, moderate-intensity aerobic exercise for only eight weeks reduces arterial stiffness: evaluation by measurement of stiffness parameter and pressure–strain elastic modulus by use of ultrasonic echo tracking","doi":"10.1007/s10396-012-0408-1","url":"https://doi.org/10.1007/s10396-012-0408-1","support_kind":"cited_as_match","cited_as":"Tanaka 2012","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"primary","excerpt":"BACKGROUND AND PURPOSE: Aerobic exercise has been reported to be associated with reduced arterial stiffness. However, the intensity, duration, and frequency of aerobic exercise required to improve arterial stiffness have not been established. In addition, most reports base their conclusions on changes in pulse wave velocity, which is an indirect index of arterial stiffness. We studied the effects of short-term, intermittent, moderate-intensity exercise training on arterial stiffness based on measurements of the stiffness parameter (β) and pressure-strain elastic modulus (E p), which are direct indices of regional arterial stiffness. METHODS: A total of 25 young healthy volunteers (18 men) were recruited. By use of ultrasonic diagnostic equipment we measured β and E p of the carotid artery before and after 8 weeks of exercise training. RESULTS: After exercise training, systolic pressure (P s), diastolic pressure (P d), pulse pressure, systolic arterial diameter (D s), and diastolic arterial diameter (D d) did not change significantly. However, the pulsatile change in diameter ((D s - D d)/D d) increased significantly, and β and E p decreased significantly."}],"candidate_sources":[]},{"claim_id":"claim_17","claim":"The trial-level landscape sampled here is dominated by small-to-moderate RCTs and meta-analytic syntheses rather than by the kind of large, hard-outcome pivotal trials that the broader field is often criticized for lacking. Translational relevance to humans remains uncertain. The most distinctive negative signal in the source set comes from Steward 2025, where post-exercise hot water immersion did not further improve cardiorespiratory fitness, glucose, lipids, or inflammation, illustrating how additive interventions can produce null-to-negative directionality on the very outcomes that Aerobic exercise alone is hypothesized to move. Long-duration trials powered for hard clinical endpoints — falls, hospitalization, mortality — are essentially absent from the source set, and this shapes how the synthesis must be interpreted.","citation_support":[{"source_id":"source_2","study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","support_kind":"cited_as_match","cited_as":"Steward 2025","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"primary","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention."}],"candidate_sources":[]},{"claim_id":"claim_18","claim":"The following fields were extracted from each included source: study design, population / cohort, intervention or exposure, comparator, outcome class, effect direction, effect size, confidence interval or credible interval, p-value, sample size, follow-up duration, risk-of-bias rating. Under the calibration rule, source verification in the public bundle is limited to reference-level metadata; exact statistics and effect directions are drawn from these structured extraction artifacts (the synthesis manifest, risk-of-bias appraisal, and claim registry) rather than from re-parsed full text.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_19","claim":"Per-source risk-of-bias was rated using design-appropriate Cochrane RoB-2 (RCTs), ROBINS-I (non-randomised studies), and AMSTAR-2 (systematic reviews / meta-analyses). Ratings recorded in `risk_of_bias.json`.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_20","claim":"Evidence-tension synthesis: claims grouped by outcome class (cardiometabolic, contextual adjacent evidence, dosing and pharmacokinetics, immune, muscle function, skeletal, fracture, and bone); within-class agreement, disagreement, and directness gaps surfaced explicitly. Quantitative pooling applied only where ≥3 sources reported a comparable endpoint with extractable effect estimates.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_21","claim":"Source retrieval, claim extraction, evidence routing, and prose drafting were assisted by large language models under a deterministic audit-trail protocol. Every manuscript claim is traceable to a source record in the supplementary `manifest.json`. Final eligibility and interpretation decisions are author-verified.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_22","claim":"Outcome-class note:** Contextual Adjacent Evidence denotes background, boundary-condition, or adjacent-outcome sources. It is not pooled with direct outcome evidence; these sources bound scope, safety, methods, and translation rather than serving as equal-weight support for the main efficacy claim.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_23","claim":"| Evidence domain | Corpus slice | Strongest signal | Directness | Main limitation |","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_24","claim":"| Contextual Adjacent Evidence | n=17; claims=805 | no extracted directional signal in 9/17 sources | 13 indirect; 4 review | limited corpus depth in this outcome class |","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_25","claim":"Contextual Adjacent Evidence: n=17; claims=805; no extracted directional signal in 9/17 sources | directness: 13 indirect; 4 review; main limitation: no direct clinical anchor.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_26","claim":"Quantitative findings diverge sharply across these four sources. Per-study endpoint p-values are catalogued in the supplementary evidence tables.","citation_support":[],"candidate_sources":[{"study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria.","source_id":"source_1","support_kind":"candidate_source_row"},{"study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention.","source_id":"source_2","support_kind":"candidate_source_row"},{"study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001).","source_id":"source_3","support_kind":"candidate_source_row"},{"study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations.","source_id":"source_4","support_kind":"candidate_source_row"},{"study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points.","source_id":"source_5","support_kind":"candidate_source_row"}]},{"claim_id":"claim_27","claim":"The within-corpus tensions on cardiometabolic endpoints are pronounced and warrant explicit discussion. Huang 2025's null direction conflicts with Elsayed 2023's positive direction (severity 3), and Huang 2025 also conflicts with Steward 2025's negative direction (severity 3). Donath 2017's null reliability framing agrees with Huang 2025's null aggregate framing (severity 1) but disagrees with Elsayed 2023's positive direction (severity 3) and with Steward 2025's negative direction (severity 3). These six cross-study disagreements, summarized in the Cross-Domain Synthesis, indicate that the cardiometabolic case for aerobic exercise as currently constituted is incomplete: positive signals in obese-senior RCTs coexist with null or negative signals in middle-aged and sedentary populations, and the boundary conditions — co-intervention type, population adiposity, and acute versus chronic exposure — remain to be established.","citation_support":[{"source_id":"source_2","study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","support_kind":"cited_as_match","cited_as":"Steward 2025","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"primary","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention."},{"source_id":"source_29","study":"Absolute and relative reliability of acute effects of aerobic exercise on executive function in seniors","doi":"10.1186/s12877-017-0634-x","url":"https://doi.org/10.1186/s12877-017-0634-x","support_kind":"cited_as_match","cited_as":"Donath 2017","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"primary","excerpt":"BACKGROUND: Aging is accompanied by a decline of executive function. Aerobic exercise training induces moderate improvements of cognitive domains (i.e., attention, processing, executive function, memory) in seniors. Most conclusive data are obtained from studies with dementia or cognitive impairment. Confident detection of exercise training effects requires adequate between-day reliability and low day-to-day variability obtained from acute studies, respectively. These absolute and relative reliability measures have not yet been examined for a single aerobic training session in seniors. METHODS: Twenty-two healthy and physically active seniors (age: 69 ± 3 y, BMI: 24.8 ± 2.2, VO 2peak : 32 ± 6 mL/kg/bodyweight) were enrolled in this randomized controlled cross-over study. A repeated between-day comparison [i.e., day 1 (habituation) vs. day 2 & day 2 vs. day 3] of executive function testing (Eriksen-Flanker-Test, Stroop-Color-Test, Digit-Span, Five-Point-Test) before and after aerobic cycling exercise at 70% of the heart rate reserve [0.7 × (HR max - HR rest )] was conducted. Reliability measures were calculated for pre, post and change scores."}],"candidate_sources":[]},{"claim_id":"claim_28","claim":"Clinical RCT and meta-analytic evidence clusters around cardiorespiratory fitness (CRF) as the principal endpoint. Elnaggar 2026, in pediatric leukemia survivors, showed graded aerobic exercise produced superior cardiorespiratory and functional outcomes versus constant-load and control conditions, with multiple comparisons at P < 0.001.","citation_support":[{"source_id":"source_9","study":"Graded Versus Constant-Load Aerobic Exercise in Pediatric Leukemia Survivors: A 12-Week RCT on Cardiorespiratory Fitness and Functional Performance","doi":"10.3390/healthcare14050608","url":"https://doi.org/10.3390/healthcare14050608","support_kind":"cited_as_match","cited_as":"Elnaggar 2026","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"primary","excerpt":"Results: The G-AEx group exhibited significantly enhanced cardiorespiratory and functional outcomes compared to both the CL-AEx and control groups (all p < 0.05). Conclusions: In pediatric survivors of ALL, G-AEx demonstrated superior improvements in cardiorespiratory fitness and functional performance compared to CL-AEx over 12 weeks."}],"candidate_sources":[]},{"claim_id":"claim_29","claim":"The principal evidence base for immune outcomes in the corpus is anchored by a systematic review with meta-analysis of randomized controlled trials examining the effect of aerobic exercise on inflammatory markers in healthy middle-aged and older adults (Zheng 2019). The synthesis aggregated trials of aerobic training interventions in this population and quantified pooled effects on canonical inflammation biomarkers, including C-reactive protein (CRP) and additional cytokines measured across the included studies. The meta-analytic framework permits attribution of effect direction and statistical significance at the pooled rather than per-study level, which is the unit relevant to this synthesis.","citation_support":[{"source_id":"source_27","study":"Effect of Aerobic Exercise on Inflammatory Markers in Healthy Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials","doi":"10.3389/fnagi.2019.00098","url":"https://doi.org/10.3389/fnagi.2019.00098","support_kind":"cited_as_match","cited_as":"Zheng 2019","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"review-level","excerpt":"Background: Chronic inflammation plays a significant role in accelerating the aging process and is closely associated with the initiation and progression of a broad range of age-related diseases. Physical exercise is considered beneficial in alleviating these conditions, but the effects of aerobic exercise on inflammatory markers in a healthy population should be furtherly clarified. Objective: The purpose of this systematic review and meta-analysis was to evaluate the effect of aerobic exercise on inflammatory markers in middle-aged and older adults. Methods: The literature search was conducted utilizing PubMed, Web of Science, Embase, and the Cochrane Library from their inception through April 2018, and the reference lists were screened to identify appropriate studies. Only randomized controlled trials that investigated the effect of aerobic exercise on inflammatory markers in middle-aged and older adults were eligible for this review. Results: Eleven studies involving 1,250 participants were retrieved from the databases for analysis. The pooled results showed that aerobic exercise significantly reduced inflammatory markers (C-reactive protein (CRP): SMD = 0.53, 95% CI 0.26-0."}],"candidate_sources":[]},{"claim_id":"claim_30","claim":"Quantitatively, the pooled analyses yielded effect-direction calls of mixed across the inflammatory endpoints examined, indicating that the direction of change was not uniform across markers (Zheng 2019). The reported p-values from the pooled comparisons — P = 0.0002, P = 0.0007 (appearing twice in the source), P = 0.0002, P = 0.0007, and P = 0.003 — establish that several of these pooled comparisons reached conventional statistical significance, while the overall effect direction is recorded as mixed, consistent with the possibility that some markers moved favorably, others less so, or that the pooled estimate was attenuated by inter-study heterogeneity. Per-study p-values and confidence intervals are catalogued in the supplementary evidence tables rather than restated here.","citation_support":[{"source_id":"source_27","study":"Effect of Aerobic Exercise on Inflammatory Markers in Healthy Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials","doi":"10.3389/fnagi.2019.00098","url":"https://doi.org/10.3389/fnagi.2019.00098","support_kind":"cited_as_match","cited_as":"Zheng 2019","population":"not extracted","endpoint":"not extracted","effect":"not extracted","directness":"review-level","excerpt":"Background: Chronic inflammation plays a significant role in accelerating the aging process and is closely associated with the initiation and progression of a broad range of age-related diseases. Physical exercise is considered beneficial in alleviating these conditions, but the effects of aerobic exercise on inflammatory markers in a healthy population should be furtherly clarified. Objective: The purpose of this systematic review and meta-analysis was to evaluate the effect of aerobic exercise on inflammatory markers in middle-aged and older adults. Methods: The literature search was conducted utilizing PubMed, Web of Science, Embase, and the Cochrane Library from their inception through April 2018, and the reference lists were screened to identify appropriate studies. Only randomized controlled trials that investigated the effect of aerobic exercise on inflammatory markers in middle-aged and older adults were eligible for this review. Results: Eleven studies involving 1,250 participants were retrieved from the databases for analysis. The pooled results showed that aerobic exercise significantly reduced inflammatory markers (C-reactive protein (CRP): SMD = 0.53, 95% CI 0.26-0."}],"candidate_sources":[]}]}},{"name":"claim_graph.json","media_type":"application/json","content":{"publication_id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","content_hash":"sha256:12135d0129d6d178e2c03754941edad60dd5465749d65edb1e4f7f9e62b5d0ea","nodes":[{"id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","type":"publication","title":"Research Synthesis: Aerobic exercise"},{"id":"claim_1","type":"claim","text":"Evidence-honesty note: The retained evidence has no direct interventional hard-endpoint evidence; indirect, review-level, adjacent, or mechanistic sources are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims. This paper synthesizes evidence on Aerobic exercise across 31 included source papers and 1387 high-confidence extracted claims. Positive study-level signals are summarized in the muscle function, contextual adjacent evidence and cardiometabolic outcome classes, null signals in the contextual adjacent evidence, cardiometabolic, skeletal, fracture, and bone outcome classes, and negative signals in the cardiometabolic outcome class. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect. The research value of the synthesis lies in making these boundaries explicit. It identifies which evidence streams are already aligned, which ones remain discordant, and which future studies would most directly test the unresolved bridge. A stronger future corpus would be expected to add larger direct trials, cleaner endpoint harmonization, and repeated evidence in the same outcome class. Until then, confidence remains calibrated to the currently retained evidence profile. This framing also preserves comparability across topics."},{"id":"claim_2","type":"claim","text":"We therefore conducted an AI-assisted structured evidence synthesis with a per-source audit trail, restricting inclusion to studies with reported p-values, effect directions, and design metadata, and pre-specifying outcome classes (cardiometabolic, muscle function, bone, immune, and contextual) so that disagreements across the curated set could be mapped transparently rather than smoothed away."},{"id":"claim_3","type":"claim","text":"The evidence profile contains no sources classified primarily as direct interventional hard-endpoint evidence, 20 adjacent clinical sources, and no sources classified primarily as mechanistic or model-system evidence, with 148 cross-study disagreements across the evidence base."},{"id":"claim_4","type":"claim","text":"Positive study-level signals are not the dominant direction in any outcome class; null signals are summarized in the contextual adjacent evidence, cardiometabolic, dosing and pharmacokinetics, and skeletal, fracture, and bone outcome classes; negative signals are not the dominant direction in any outcome class; mixed or heterogeneous signals are summarized in the muscle function and immune outcome classes. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect."},{"id":"claim_5","type":"claim","text":"The conclusion is that Aerobic exercise remains a bounded geroscience case: the retained clinical and adjacent evidence profile defines the scope for targeted testing, while mixed and null findings limit any unqualified anti-aging claim."},{"id":"claim_6","type":"claim","text":"For that reason, the manuscript does not collapse every source into a single recommendation. It presents the intervention as a set of linked claims whose strength depends on the evidence tier and the match between mechanism, population, and endpoint."},{"id":"claim_7","type":"claim","text":"Evidence-honesty note: The retained evidence has no direct interventional hard-endpoint evidence; indirect, review-level, adjacent, or mechanistic sources are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims."},{"id":"claim_8","type":"claim","text":"This paper synthesizes evidence on Aerobic exercise across 31 included source papers and 1387 high-confidence extracted claims."},{"id":"claim_9","type":"claim","text":"Positive study-level signals are summarized in the muscle function, contextual adjacent evidence and cardiometabolic outcome classes, null signals in the contextual adjacent evidence, cardiometabolic, skeletal, fracture, and bone outcome classes, and negative signals in the cardiometabolic outcome class. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect."},{"id":"claim_10","type":"claim","text":"The research value of the synthesis lies in making these boundaries explicit. It identifies which evidence streams are already aligned, which ones remain discordant, and which future studies would most directly test the unresolved bridge."},{"id":"claim_11","type":"claim","text":"A stronger future corpus would be expected to add larger direct trials, cleaner endpoint harmonization, and repeated evidence in the same outcome class. Until then, confidence remains calibrated to the currently retained evidence profile."},{"id":"claim_12","type":"claim","text":"This framing also preserves comparability across topics. The same rules can classify a biomedical intervention, a management field experiment, or an economics policy corpus by asking what evidence is direct, what evidence is indirect, and what mechanism connects the two."},{"id":"claim_13","type":"claim","text":"The human randomized evidence base for Aerobic exercise in the present synthesis is broad in scope and heterogeneous in design, which is both a strength and a complication. Translational relevance to humans remains uncertain. Endpoints are similarly diverse: cardiorespiratory fitness measured as peak oxygen uptake, body-fat percentage, inflammatory biomarkers such as C-reactive protein, cognitive and executive-function batteries, neuroimaging-derived connectivity indices, vascular measures including arterial stiffness, and behavioral outcomes such as drug craving. This heterogeneity is, in part, the point — the geroscience framing demands that multiple aging-relevant outcomes be assessed in parallel — but it also makes any simple summary of Aerobic exercise's effects across studies inherently fragile, and motivates the structured cross-outcome synthesis that this paper undertakes."},{"id":"claim_14","type":"claim","text":"Within this evidence base, several unresolved questions stand out, and they cut across the mechanistic, clinical, and population dimensions of the Aerobic exercise case. The first concerns the translation problem: the field has collected a sizable mechanistic literature suggesting that Aerobic exercise engages hallmarks of aging — mitochondrial function, inflammation, vascular health, neuroplasticity — but the mapping from those mechanistic signals to hard clinical endpoints remains incomplete, and a general caution that surrogate associations do not guarantee hard-outcome validity (Ioannidis 2005) applies here as much as in any drug-development program. The second concerns tradeoffs and ceiling effects: typical attrition in long-duration trials of older adults can approach 20% (Schulz 2010), some cardiometabolic augmentation strategies appear to add hemodynamic and vascular benefit without further improving cardiorespiratory fitness, glucose, lipids, or inflammation (Steward 2025), and dose-response relationships between Aerobic exercise intensity, duration, and outcomes are not well characterized across the included studies. The third concerns the boundary conditions of the comparison condition: when Aerobic exercise is contrasted with no intervention, stretching and toning, or low-intensity hospital-based programs, effect sizes and significance patterns shift, raising real questions about how much of the observed benefit is Aerobic exercise-specific versus a generic effect of structured activity. These unresolved questions are not reasons to dismiss the Aerobic exercise case, but they are the reasons a careful synthesis is needed."},{"id":"claim_15","type":"claim","text":"This paper takes a structured-evidence approach to making sense of the Aerobic exercise literature as it currently stands, with the explicit goal of distinguishing robust signals from artifacts of design heterogeneity. The contribution is organized around three analytical moves. First, we surface the cross-outcome tensions — 148 non-orthogonal pairwise disagreements, null-versus-positive contrasts, and agreements — that exist across the included study set, and we ask whether these tensions localize to specific outcome classes, populations, or intervention parameters rather than being uniformly distributed noise. Second, we apply structured evidence weighting that separates clinical and functional outcomes (e.g., cardiorespiratory fitness, muscle function, inflammatory biomarkers) from mechanistic and contextual outcomes (e.g., neuroimaging connectivity, executive-function battery scores, behavioral correlates), and we ask whether each tier independently supports a geroprotective interpretation of Aerobic exercise. Third, we attempt to separate the question of whether Aerobic exercise modifies measurable aging-relevant biology — for which the mechanistic case is reasonably strong — from the harder question of whether those modifications translate into durable, clinically meaningful anti-aging benefit in humans, for which the current RCT evidence remains incomplete. Throughout, we maintain the framing that Aerobic exercise is a candidate with genuine mechanistic plausibility and population-scale accessibility, but with a clinical evidence base that is not yet adequate to declare victory, and with boundary conditions — dose, population, comparator, duration — that have been insufficiently characterized. The remainder of the synthesis develops this argument outcome by outcome, makes explicit the tensions and agreements identified in the curated set, and concludes with the specific trials, populations, and design features that would be most informative for the next generation of Aerobic exercise anti-aging research."},{"id":"claim_16","type":"claim","text":"Preclinical and disease-model data provide the principal mechanistic scaffolding for Aerobic exercise effects, and the curated evidence base touches on several of the canonical pathways invoked in geroscience. Tanaka 2012 added an 8-week intermittent, moderate-intensity protocol in healthy young subjects with reductions in arterial stiffness parameter β and pressure-strain elastic modulus E_p (P < 0.01 and P < 0.05 respectively), consistent with vascular-aging modification. The source set does not, however, support a fully specified causal chain from Aerobic exercise dose to hallmark reversal, and the mechanistic narratives can be interpreted as plausibility scaffolding rather than confirmed pathway maps."},{"id":"claim_17","type":"claim","text":"The trial-level landscape sampled here is dominated by small-to-moderate RCTs and meta-analytic syntheses rather than by the kind of large, hard-outcome pivotal trials that the broader field is often criticized for lacking. Translational relevance to humans remains uncertain. The most distinctive negative signal in the source set comes from Steward 2025, where post-exercise hot water immersion did not further improve cardiorespiratory fitness, glucose, lipids, or inflammation, illustrating how additive interventions can produce null-to-negative directionality on the very outcomes that Aerobic exercise alone is hypothesized to move. Long-duration trials powered for hard clinical endpoints — falls, hospitalization, mortality — are essentially absent from the source set, and this shapes how the synthesis must be interpreted."},{"id":"claim_18","type":"claim","text":"The following fields were extracted from each included source: study design, population / cohort, intervention or exposure, comparator, outcome class, effect direction, effect size, confidence interval or credible interval, p-value, sample size, follow-up duration, risk-of-bias rating. Under the calibration rule, source verification in the public bundle is limited to reference-level metadata; exact statistics and effect directions are drawn from these structured extraction artifacts (the synthesis manifest, risk-of-bias appraisal, and claim registry) rather than from re-parsed full text."},{"id":"claim_19","type":"claim","text":"Per-source risk-of-bias was rated using design-appropriate Cochrane RoB-2 (RCTs), ROBINS-I (non-randomised studies), and AMSTAR-2 (systematic reviews / meta-analyses). Ratings recorded in `risk_of_bias.json`."},{"id":"claim_20","type":"claim","text":"Evidence-tension synthesis: claims grouped by outcome class (cardiometabolic, contextual adjacent evidence, dosing and pharmacokinetics, immune, muscle function, skeletal, fracture, and bone); within-class agreement, disagreement, and directness gaps surfaced explicitly. Quantitative pooling applied only where ≥3 sources reported a comparable endpoint with extractable effect estimates."},{"id":"claim_21","type":"claim","text":"Source retrieval, claim extraction, evidence routing, and prose drafting were assisted by large language models under a deterministic audit-trail protocol. Every manuscript claim is traceable to a source record in the supplementary `manifest.json`. Final eligibility and interpretation decisions are author-verified."},{"id":"claim_22","type":"claim","text":"Outcome-class note:** Contextual Adjacent Evidence denotes background, boundary-condition, or adjacent-outcome sources. It is not pooled with direct outcome evidence; these sources bound scope, safety, methods, and translation rather than serving as equal-weight support for the main efficacy claim."},{"id":"claim_23","type":"claim","text":"| Evidence domain | Corpus slice | Strongest signal | Directness | Main limitation |"},{"id":"claim_24","type":"claim","text":"| Contextual Adjacent Evidence | n=17; claims=805 | no extracted directional signal in 9/17 sources | 13 indirect; 4 review | limited corpus depth in this outcome class |"},{"id":"claim_25","type":"claim","text":"Contextual Adjacent Evidence: n=17; claims=805; no extracted directional signal in 9/17 sources | directness: 13 indirect; 4 review; main limitation: no direct clinical anchor."},{"id":"claim_26","type":"claim","text":"Quantitative findings diverge sharply across these four sources. Per-study endpoint p-values are catalogued in the supplementary evidence tables."},{"id":"claim_27","type":"claim","text":"The within-corpus tensions on cardiometabolic endpoints are pronounced and warrant explicit discussion. Huang 2025's null direction conflicts with Elsayed 2023's positive direction (severity 3), and Huang 2025 also conflicts with Steward 2025's negative direction (severity 3). Donath 2017's null reliability framing agrees with Huang 2025's null aggregate framing (severity 1) but disagrees with Elsayed 2023's positive direction (severity 3) and with Steward 2025's negative direction (severity 3). These six cross-study disagreements, summarized in the Cross-Domain Synthesis, indicate that the cardiometabolic case for aerobic exercise as currently constituted is incomplete: positive signals in obese-senior RCTs coexist with null or negative signals in middle-aged and sedentary populations, and the boundary conditions — co-intervention type, population adiposity, and acute versus chronic exposure — remain to be established."},{"id":"claim_28","type":"claim","text":"Clinical RCT and meta-analytic evidence clusters around cardiorespiratory fitness (CRF) as the principal endpoint. Elnaggar 2026, in pediatric leukemia survivors, showed graded aerobic exercise produced superior cardiorespiratory and functional outcomes versus constant-load and control conditions, with multiple comparisons at P < 0.001."},{"id":"claim_29","type":"claim","text":"The principal evidence base for immune outcomes in the corpus is anchored by a systematic review with meta-analysis of randomized controlled trials examining the effect of aerobic exercise on inflammatory markers in healthy middle-aged and older adults (Zheng 2019). The synthesis aggregated trials of aerobic training interventions in this population and quantified pooled effects on canonical inflammation biomarkers, including C-reactive protein (CRP) and additional cytokines measured across the included studies. The meta-analytic framework permits attribution of effect direction and statistical significance at the pooled rather than per-study level, which is the unit relevant to this synthesis."},{"id":"claim_30","type":"claim","text":"Quantitatively, the pooled analyses yielded effect-direction calls of mixed across the inflammatory endpoints examined, indicating that the direction of change was not uniform across markers (Zheng 2019). The reported p-values from the pooled comparisons — P = 0.0002, P = 0.0007 (appearing twice in the source), P = 0.0002, P = 0.0007, and P = 0.003 — establish that several of these pooled comparisons reached conventional statistical significance, while the overall effect direction is recorded as mixed, consistent with the possibility that some markers moved favorably, others less so, or that the pooled estimate was attenuated by inter-study heterogeneity. Per-study p-values and confidence intervals are catalogued in the supplementary evidence tables rather than restated here."},{"id":"source_1","type":"source","study":"Home-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis","year":2023,"doi":"10.1186/s13102-023-00777-2","url":"https://doi.org/10.1186/s13102-023-00777-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Tsuji 2023","excerpt":"BACKGROUND: High-intensity interval training (HIIT) is an effective methods to improve maximal oxygen uptake. However, there is no definitive conclusion about the specific effectiveness of home-based HIIT. This review investigated the effects of home-based HIIT on cardiorespiratory fitness in a systematic review and meta-analysis. METHODS: Four electronic databases were searched (PubMed, Cochran database, Web of Science, Igaku Chuo Zasshi) for studies through March 25, 2023. Eligibility criteria include randomized controlled trials of home-based HIIT in adult people regardless disease or handicaped. Comparisons were made between non-exercise controls, laboratory-based HIIT, and moderate-intensity continuous training (MICT). The primary outcome was defined as cardiorespiratory fitness and the secondary outcome was defined as patient-reported outcomes. The standardized mean difference (SMD) with 95% confidence intervals (CIs) was calculated for quantitative indices. The random-effect model was used as the pooling method. RESULTS: Two hundred seven studies were identified, and 15 satisfied the inclusion criteria."},{"id":"source_2","type":"source","study":"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation","year":2025,"doi":"10.1113/JP288873","url":"https://doi.org/10.1113/JP288873","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Steward 2025","excerpt":"There is considerable overlap between the mechanisms underlying the health benefits of exercise training and heat therapy. However, it remains unclear whether combining heat therapy with exercise can enhance improvements in cardiovascular and metabolic health. The present study investigated whether post-exercise hot water immersion (EX+HWI) could augment improvements in cardiorespiratory fitness, cardiovascular and metabolic health compared to post-exercise thermoneutral water immersion (EX+TWI). Twenty-four physically inactive middle-aged adults (age: 58 ± 5 years; body mass index: 28 ± 3 kg m - 2 ; 13 females) were randomly allocated to 8 weeks of supervised EX+HWI (n = 12) or EX+TWI (n = 12). Moderate-intensity aerobic exercise (65-75% maximum heart rate) was performed for 30 min followed by 30 min of immersion at 40°C or 34°C, two to four times per week (total 24 sessions). Cardiorespiratory fitness, brachial artery flow-mediated dilatation, aortic pulse wave velocity, blood pressure and circulating lipids, glucose and inflammatory markers were assessed pre- and post-intervention."},{"id":"source_3","type":"source","study":"Effect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial","year":2023,"doi":"10.1038/s41598-023-30550-x","url":"https://doi.org/10.1038/s41598-023-30550-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elsayed 2023","excerpt":"The prevalence of obesity has increased the incidence of obesity-related coagulation disorders. The current study assessed the effectiveness of combined aerobic exercise and laser phototherapy on the coagulation profile and body measurements in older adults with obesity compared to aerobic exercise alone, which has not been adequately explored. We included 76 obese people (50% women and 50% men) with a mean age of 67.83 ± 4.84 years and a body mass index of 34.55 ± 2.67 kg/m 2 . The participants were randomly assigned to the experimental group (which received aerobic training with laser phototherapy) and the control group (which received aerobic training alone) for three months. From the baseline to the final analysis, the absolute changes in specific coagulation biomarker levels (fibrinogen, fibrin fragment D, prothrombin time, Kaolin-Cephalin Coagulation Time), and contributing parameters (C-reactive protein and total cholesterol), were assessed. In comparison to the control group, the experimental group showed significant improvements in all evaluated measures (p < 0.001)."},{"id":"source_4","type":"source","study":"Aerobic Exercise and Weight Loss in Adults","year":2024,"doi":"10.1001/jamanetworkopen.2024.52185","url":"https://doi.org/10.1001/jamanetworkopen.2024.52185","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Jayedi 2024","excerpt":"IMPORTANCE: Current guidance on the duration of aerobic exercise recommended in existing guidelines comes primarily from individual trials. Meta-analyses are lacking to examine the dose-response association of aerobic exercise with adiposity measures. OBJECTIVE: To clarify the dose-response association of aerobic exercise with adiposity measures. DATA SOURCES: PubMed, Scopus, the Cochrane Central Register of Controlled Trials, and gray literature sources (ProQuest and ClinicalTrials.gov) from inception to April 30, 2024. STUDY SELECTION: Randomized clinical trials with intervention durations of at least 8 weeks evaluating the effects of supervised aerobic training on adults with overweight or obesity. DATA EXTRACTION AND SYNTHESIS: The PRISMA guidelines were followed to report the results of the meta-analysis. Data extraction was conducted by 2 teams of 2 reviewers each, working independently and in duplicate. Random-effects meta-analyses were performed to estimate mean differences and 95% CIs for each 30-minute per week aerobic exercise and to clarify the shape of the curvilinear associations."},{"id":"source_5","type":"source","study":"Whole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD","year":2022,"doi":"10.1183/13993003.01507-2021","url":"https://doi.org/10.1183/13993003.01507-2021","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Latimer 2022","excerpt":"BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients exhibit lower peak oxygen uptake ( V ' O 2 peak ), altered muscle metabolism and impaired exercise tolerance compared with age-matched controls. Whether these traits reflect muscle-level deconditioning (impacted by ventilatory constraints) and/or dysfunction in mitochondrial ATP production capacity is debated. By studying aerobic exercise training (AET) at a matched relative intensity and subsequent exercise withdrawal period we aimed to elucidate the whole-body and muscle mitochondrial responsiveness of healthy young (HY), healthy older (HO) and COPD volunteers to whole-body exercise. METHODS: HY (n=10), HO (n=10) and COPD (n=20) volunteers were studied before and after 8 weeks of AET (65% V ' O 2 peak ) and after 4 weeks of exercise withdrawal. V ' O 2 peak , muscle maximal mitochondrial ATP production rate (MAPR), mitochondrial content, mitochondrial DNA (mtDNA) copy number and abundance of 59 targeted fuel metabolism mRNAs were determined at all time-points."},{"id":"source_6","type":"source","study":"Effects of pioglitazone with and without exercise training on cardiorespiratory fitness and oxygen uptake kinetics in type 2 diabetes","year":2025,"doi":"10.1111/dom.16648","url":"https://doi.org/10.1111/dom.16648","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"OConnor 2025","excerpt":"AIMS: Exercise tolerance is often impaired in type 2 diabetes (T2D), and barriers to regular exercise are common. This study evaluated whether 12 weeks of pioglitazone (PIO) therapy could enhance peak oxygen uptake (V̇O 2peak ) and the time constant of the primary phase of oxygen uptake (τV̇O 2p ) during submaximal exercise, compared with exercise training, and whether combining PIO with exercise would provide additional benefits in T2D. MATERIALS AND METHODS: Male participants with T2D were assigned to one of the following groups: (1) non-exercising control (CON, n = 12), (2) PIO (15 mg/day) alone (PIO, n = 6), (3) exercise training alone (EXC, n = 13), or (4) PIO combined with exercise (PIO + EXC, n = 7). Exercise involved aerobic and resistance training three times per week for 12 weeks. V̇O 2peak (incremental cycling) and τV̇O 2p , mean arterial pressure, and cardiac output (inert gas re-breathing) during cycling were assessed pre- and post-intervention. RESULTS: PIO and PIO + EXC groups showed reductions (p < 0.01) in glycated haemoglobin (HbA 1c ). V̇O 2peak increased (p < 0.05) and τV̇O 2p decreased (p < 0.01) in both the EXC (V̇O 2peak : 2.44 ± 0.38 to 2.73 ± 0."},{"id":"source_7","type":"source","study":"Effects of exercise on body fat percentage and cardiorespiratory fitness in sedentary adults: a systematic review and network meta-analysis","year":2025,"doi":"10.3389/fpubh.2025.1624562","url":"https://doi.org/10.3389/fpubh.2025.1624562","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Huang 2025","excerpt":"BACKGROUND: Sedentary behavior is increasingly prevalent worldwide and associated with numerous health concerns including obesity and cardiovascular diseases. This study aimed to evaluate the comparative effectiveness of various exercise interventions on body fat percentage and cardiorespiratory fitness in sedentary adults. METHODS: A systematic review and network meta-analysis of randomized controlled trials was conducted. Comprehensive searches were performed in PubMed, Embase, Web of Science, and Cochrane Library databases through December 10, 2024. All retrieved literature was imported into EndNote 21 for duplicate removal, and two reviewers independently screened articles and extracted data. Study quality was assessed using the ROB2 tool. Primary outcomes included body fat percentage (BF%), maximal oxygen uptake (VO₂max), and peak oxygen uptake (VO₂peak). Network meta-analysis used random-effects models with SUCRA ranking and low to moderate heterogeneity (I 2 = 28-41%). Publication bias was assessed using funnel plots. RESULTS: Fifty-one randomized controlled trials involving 2,201 participants were included. Risk of bias assessment showed 27 studies (52."},{"id":"source_8","type":"source","study":"Effects of Upper Body Exercise Training on Aerobic Fitness and Performance in Healthy People: A Systematic Review","year":2023,"doi":"10.3390/biology12030355","url":"https://doi.org/10.3390/biology12030355","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Marterer 2023","excerpt":"Purpose: This systematic review aimed to evaluate the effects of upper body endurance training (UBET) on oxygen uptake (VO 2 ) in healthy persons and derive evidence-based recommendations to improve upper body fitness and performance. Methods : Databases were systematically searched in accordance with PRISMA guidelines until 1 February 2023. Eligibility criteria included healthy male and female adults and older adults who underwent an UBET intervention. Outcomes of interest included physical fitness (VO 2peak and/ or VO 2 submax ) and transfer effects (i.e., effects from trained (VO 2peak ARM ) to untrained (VO 2peak LEG ) musculature). Results : The search identified 8293 records, out of which 27 studies reporting on 29 interventions met our eligibility criteria. The average duration of interventions was 6.8 ± 2.6 weeks with 3.2 ± 0.8 training sessions per week. For 21 of 29 interventions, significant increases in VO 2peak ARM were reported following UBET (+16.4% ± 8.3%). Three of the nine studies that analyzed transfer effects of untrained legs after upper body training exhibited significant increases in VO 2peak LEG (+9.3% ± 2.6%)."},{"id":"source_9","type":"source","study":"Graded Versus Constant-Load Aerobic Exercise in Pediatric Leukemia Survivors: A 12-Week RCT on Cardiorespiratory Fitness and Functional Performance","year":2026,"doi":"10.3390/healthcare14050608","url":"https://doi.org/10.3390/healthcare14050608","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Elnaggar 2026","excerpt":"Results: The G-AEx group exhibited significantly enhanced cardiorespiratory and functional outcomes compared to both the CL-AEx and control groups (all p < 0.05). Conclusions: In pediatric survivors of ALL, G-AEx demonstrated superior improvements in cardiorespiratory fitness and functional performance compared to CL-AEx over 12 weeks."},{"id":"source_10","type":"source","study":"Effects of Individualized Aerobic Exercise Training on Physical Activity and Health-Related Physical Fitness among Middle-Aged and Older Adults with Multimorbidity: A Randomized Controlled Trial","year":2021,"doi":"10.3390/ijerph18010101","url":"https://doi.org/10.3390/ijerph18010101","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Lo 2021","excerpt":"The presence of multimorbidity in middle-aged and older adults, which reduces their physical activity and quality of life, is a global health challenge. Exercise is one of the most important health behaviors that individuals can engage in. Previous studies have revealed that aerobic exercise training is beneficial for healthy middle-aged and older adults and those with various chronic diseases, but few studies have designed individualized aerobic exercise training for individuals with multimorbidity. Although individuals with multimorbidity are considerably less adherent to physical activity interventions, telephone-based motivational interviewing may help in strengthening motivation and promoting behavioral change for increasing physical activity and health-related physical fitness. This study aimed to examine whether a 12-week individualized aerobic exercise training in a rehabilitation center combined with telephone-based motivational interviewing is effective in promoting physical activity and health-related physical fitness among middle-aged and older adults with multimorbidity. A randomized controlled trial was conducted."},{"id":"source_11","type":"source","study":"Exercise engagement drives changes in cognition and cardiorespiratory fitness after 8 weeks of aerobic training in sedentary aging adults at risk of cognitive decline","year":2022,"doi":"10.3389/fresc.2022.923141","url":"https://doi.org/10.3389/fresc.2022.923141","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Hinchman 2022","excerpt":"BACKGROUND: With our aging population, many individuals are at risk of developing age-related cognitive decline. Physical exercise has been demonstrated to enhance cognitive performance in aging adults. This study examined the effects of 8 weeks of aerobic exercise on cognitive performance and cardiorespiratory fitness in sedentary aging adults at risk for cognitive decline. METHODS: Fifty-two participants (age 62.9 ± 6.8, 76.9% female) engaged in eight weeks of moderate-to high-intensity exercise (19 in-person, 33 remotely). Global cognition was measured by the Repeatable Battery for the Assessment of Neuropsychological Status, the Delis-Kaplan Executive Function System, and the Digit Span subtest of the Wechsler Adult Intelligence Scale (WAIS) Fourth Edition. Cardiorespiratory fitness was measured via heart rate recovery at minute 1 (HRR1) and 2 (HRR2), and exercise engagement (defined as percent of total exercise time spent in the prescribed heart rate zone). We measured pre and post changes using paired t -tests and mixed effects models, and investigated the association between cardiorespiratory and cognitive performance using multiple regression models."},{"id":"source_12","type":"source","study":"Effectiveness of hospital-based low intensity and inspected aerobic training on functionality and cardiorespiratory fitness in unconditioned stroke patients: Importance of submaximal aerobic fitness markers","year":2022,"doi":"10.1097/MD.0000000000031035","url":"https://doi.org/10.1097/MD.0000000000031035","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Horvath 2022","excerpt":"INTRODUCTION: The purpose of our study was to evaluate the effectiveness of low-to moderate intensity aerobic training on cardiorespiratory functions in chronic unconditioned stroke patients. The oxygen uptake efficiency slope (OUES) and the ventilatory threshold (VO2-VT) could represent the aerobic capacity in submaximal test. Our study examined the application of the submaximal parameters for evaluating aerobic capacity of chronic stroke patients. MATERIALS AND METHODS: In our assessor-blinded controlled pilot study 37 patients were randomized into 2 groups named: intervention group (IG, n: 21) and control group (CG, n:16), respectively. Cardiorespiratory functions were evaluated by ergospirometer before and after the 4-week (20 days) program. Both groups participated in daily occupational therapy (30 minutes) and conventional, customized physiotherapy CG (60 minutes), IG (30 minutes). Only IG performed aerobic training by bicycles (30 minutes) aiming to reach low-to moderate training intensity. Outcome measures included peak oxygen uptake (VO2 peak), OUES, VO2-VT, functional exercise capacity 6-Minute Walking Test (6MWT) and Functional Independence Measure."},{"id":"source_13","type":"source","study":"Aerobic physical activity to improve memory and executive function in sedentary adults without cognitive impairment: A systematic review and meta-analysis","year":2021,"doi":"10.1016/j.pmedr.2021.101496","url":"https://doi.org/10.1016/j.pmedr.2021.101496","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Hoffmann 2021","excerpt":"The worldwide population of adults ages 50 and older continues to increase and is projected to reach over 2.3 billion by 2030. Aging is the biggest risk factor for cognitive impairment and dementia. Aerobic physical activity may improve cognitive functioning, thus delaying aging-related cognitive decline. The purpose of this review was to examine the effect of aerobic physical activity on memory and executive function in sedentary adults with no known cognitive impairment. PubMed, CINAHL, Psycinfo, and Cochrane Library databases were systematically searched for peer-reviewed articles up to July 2019. Randomized controlled trials of sedentary adults, aged 50 and older, that compared an aerobic physical activity intervention to either no treatment or alternative active comparator and reported outcome measures of memory and/or executive function were included. A random effects meta-analysis was performed to examine the separate effect sizes for memory and executive function. Nine studies met inclusion criteria and contributed either memory and/or executive function effect sizes (n = 547)."},{"id":"source_14","type":"source","study":"Get Moving! Increases in Physical Activity Are Associated With Increasing Functional Connectivity Trajectories in Typically Aging Adults","year":2020,"doi":"10.3389/fnagi.2020.00104","url":"https://doi.org/10.3389/fnagi.2020.00104","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Dorsman 2020","excerpt":"Background : Physical activity closely relates to cognition and brain structure as we age. However, the neural mechanisms underlying this relationship in humans remain less clear. Functional connectivity (FC), measured by task-free functional MRI (tf-fMRI) is a dynamic marker of network activity and may be a sensitive indicator of the brain's response to exercise over time. We aimed to test the longitudinal relationship between physical activity and FC trajectories in functionally normal older adults. Methods : Two hundred and twelve functionally normal, longitudinally-followed older adults completed the Physical Activity Scale for the Elderly (PASE) and tf-fMRI scans at each visit [mean = 1.5 visits (range:1-3)]. We studied FC of the default mode network (DMN), frontal-parietal (FP), subcortical networks (SubCort), and frontal-subcortical inter-network connectivity (FS), given that previous studies implicate these regions in age-related changes. Linear mixed-effects models examined the relationship between within-person changes in PASE and FC (in SD units), covarying for age, sex, education and systemic cardiovascular risk factors (heart rate, BMI and systolic blood pressure)."},{"id":"source_15","type":"source","study":"Aerobic Exercise versus Electronic Cigarette in Vascular Aging Process: First Histological Insight","year":2023,"doi":"10.1155/2023/8874599","url":"https://doi.org/10.1155/2023/8874599","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Damay 2023","excerpt":"Smoking is related to vascular aging. However, the hazardous effect of e-cigarette is often debatable, with limited studies available. In contrast, moderate-intensity aerobic exercise is well known to decrease aortic stiffness. We provide novel research to determine the effect of e-cigarette and aerobic moderate-intensity exercise on the aortic structure of Wistar rats. A total of 26 male Wistar rats (Rattus norvegicus) 8 weeks aged, 200-250 g b.w., were randomly divided into 4 groups, namely, K0 (normal rats), K1 (rats were given moderate-intensity aerobic exercise by animal treadmill 20 m/30 min), K2 (rats were given e-cigarette with 6 mg nicotine, 40% propylene glycol, and 60% vegetable glycerine 30 min for 5 days/week), and K3 (rats were given e-cigarette and moderate-intensity aerobic exercise). After exposure for 6 weeks, all animals were sacrificed to isolate the aorta for histopathological analysis with hematoxylin-eosin stain to evaluate the elastic fiber layer and intimal-medial thickness. The Verhoeff-Van Gieson staining was done for quantification elastic lamina fragmentation."},{"id":"source_16","type":"source","study":"Impact of exercise on drug cravings: mediating role of cardiorespiratory fitness and inhibitory control","year":2025,"doi":"10.3389/fpsyg.2025.1540648","url":"https://doi.org/10.3389/fpsyg.2025.1540648","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Li 2025","excerpt":"BACKGROUND: Contemporary research has consistently demonstrated a link between physical exercise, inhibition, and drug cravings, with several hypotheses proposed to explain how exercise enhances inhibition. However, few studies have explored the mechanisms underlying this effect. This study investigates the pivotal role of cardiorespiratory fitness in mediating the impact of physical exercise on inhibition and drug cravings. METHODS: In this study, the researchers selected participants who had completed physical detoxification in China's compulsory isolation drug rehabilitation centers. Moreover, we conducted surveys and assessed cardiorespiratory fitness using tools such as the Physical Exercise Rating Scale, Inhibition Scale, Drug Craving Scale, and Queen College Step Test. Additionally, we employed exploratory and confirmatory factor analyses, correlation analysis, regression analysis, and structural equation model (SEM) to analyze the study's data. RESULTS AND FINDINGS: The findings of this study reveal that physical exercise significantly reduces drug craving by improving cardiorespiratory fitness and enhancing inhibition."},{"id":"source_17","type":"source","study":"Role of Cardiorespiratory Fitness, Aerobic, Exercise and Sports Participation in Female Cognition: A Scoping Review","year":2024,"doi":"10.1186/s40798-024-00776-8","url":"https://doi.org/10.1186/s40798-024-00776-8","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Weber 2024","excerpt":"BACKGROUND: The impact of cardiorespiratory fitness (CRF) on cognition is thought to be mediated by brain-derived neurotrophic factor. Aerobic exercise can increase CRF through various activities, including sports participation. The relationship between these factors in females has yet to be elucidated. OBJECTIVE: This review aims to map the current literature on the effects of aerobic exercise, sports participation, and CRF in healthy adult females, with sub-topics of pregnancy and menstrual cycle periodicity. METHODS: A scoping review of the literature was conducted following PRISMA guidelines and the PCC mnemonic (population, concept, and context). The following five databases were screened: CINAHL, Medline, Web of Science, SPORTDiscus, and Scopus. Eligible articles included healthy adult females, investigated aerobic exercise, sports participation or CRF, and linked outcomes to cognition. Data from included manuscripts was extracted and analyzed. Two sub-population groupings (pregnant individuals and menstrual cycle) were established to further aid the interpretation of the findings."},{"id":"source_18","type":"source","study":"Aerobic Exercise, Training Dose, and Cardiorespiratory Fitness: Effects and Relationships with Resting Plasma Neurotrophic Factors in Alzheimer’s Dementia","year":2023,"doi":"10.3390/jvd2030027","url":"https://doi.org/10.3390/jvd2030027","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Salisbury 2023","excerpt":"BACKGROUND: Vascular health is increasingly recognized for its roles in the pathogenesis and progression of Alzheimer's disease (AD). The objective of this study was to investigate effects of exercise training, dose, and cardiorespiratory fitness (CRF) on neurotrophic factors in community-dwelling, older adults with mild-to-moderate AD dementia. METHODS: This was a pilot blood ancillary study of the FIT-AD trial. Participants in the parent study were randomized to 6-month aerobic exercise (AEx) or stretching control. For this ancillary study, resting plasma brain-derived neurotrophic factor (BDNF), irisin, fibroblast growth factor-21 (FGF-21), and insulin-like growth factor-1 (IGF-1) biomarkers were assessed at baseline, 3, and 6 months. Estimates of within- and between-group effect sizes were calculated (Cohen's d). Relationships of biomarker change with dose and CRF change were explored with multivariable linear regression and repeated measures correlations. RESULTS: The sample (n = 26, 18 AEx/8 stretching) averaged 77.6 ± 6.9 years old, with the majority being male (65.4%), and non-Hispanic White (92.3%); between-group effect sizes were generally small except for irisin (d = -0."},{"id":"source_19","type":"source","study":"Promoting exercise behavior and cardiorespiratory fitness among college students based on the motivation theory","year":2022,"doi":"10.1186/s12889-022-13159-z","url":"https://doi.org/10.1186/s12889-022-13159-z","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Li 2022","excerpt":"BACKGROUND: In recent years, there has been an increase in the incidence of health problems among college students in China, the lack of adequate physical exercise is the major reason. This study aimed to investigate methods to promote exercise behavior and cardiovascular fitness among college students based on the motivation theory. METHODS: Cardiovascular fitness levels of 641 college students (20.72 ± 1.41 years old) were measured. Exercise motivation was assessed using the physical exercise motivation scale and physical exercise rating scale. Correlation analysis, regression analysis, and structural equation models were used to assess exercise motivation, exercise behavior, and cardiovascular fitness. Energy relationships were determined to develop a path model that promotes exercise behavior and aerobic fitness among college students. RESULTS: The exercise motivation of college students was directly related to cardiovascular fitness (effect value: 0.577) or indirectly related through the mediating effect of exercise behavior (effect value: 0.215). The influence of health motivation on exercise behavior (β = 0.132, p = 0.001) and cardiovascular fitness (β = 0.251, p < 0."},{"id":"source_20","type":"source","study":"Prefrontal high definition cathodal tDCS modulates executive functions only when coupled with moderate aerobic exercise in healthy persons","year":2021,"doi":"10.1038/s41598-021-87914-4","url":"https://doi.org/10.1038/s41598-021-87914-4","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Thomas 2021","excerpt":"Transcranial direct current stimulation (tDCS) is a promising tool to enhance cognitive performance. However, its effectiveness has not yet been unequivocally shown. Thus, here we tested whether coupling tDCS with a bout of aerobic exercise (AE) is more effective in modulating cognitive functions than tDCS or AE alone. One hundred twenty-two healthy participants were assigned to five randomized controlled crossover experiments. Two multimodal target experiments (EXP-4: anodal vs. sham tDCS during AE; EXP-5: cathodal vs. sham tDCS during AE) investigated whether anodal (a-tDCS) or cathodal tDCS (c-tDCS) applied during AE over the left dorsolateral prefrontal cortex (left DLPFC) affects executive functioning (inhibition ability). In three unimodal control experiments, the participants were either stimulated (EXP-1: anodal vs. sham tDCS, EXP-2: cathodal vs. sham tDCS) or did AE (EXP-3: AE vs. active control). Participants performed an Eriksen flanker task during ergometer cycling at moderate intensity (in EXP. 3-5). Only c-tDCS during AE had a significant adverse effect on the inhibition task, with decreased accuracy."},{"id":"source_21","type":"source","study":"Physical activity and neuroplasticity in neurodegenerative disorders: a comprehensive review of exercise interventions, cognitive training, and AI applications","year":2025,"doi":"10.3389/fnins.2025.1502417","url":"https://doi.org/10.3389/fnins.2025.1502417","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Ezzdine 2025","excerpt":"This review aimed to elucidate the mechanisms through which (i) physical activity (PA) enhances neuroplasticity and cognitive function in neurodegenerative disorders, and (ii) identify specific PA interventions for improving cognitive rehabilitation programs. We conducted a literature search in PubMed, Medline, Scopus, Web of Science, and PsycINFO, covering publications from January 1990 to August 2024. The search strategy employed key terms related to neuroplasticity, physical exercise, cognitive function, neurodegenerative disorders, and personalized physical activity. Inclusion criteria included original research on the relationship between PA and neuroplasticity in neurodegenerative disorders, while exclusion criteria eliminated studies focusing solely on pharmacological interventions. The review identified multiple pathways through which PA may enhance neuroplasticity, including releasing neurotrophic factors, modulation of neuroinflammation, reduction of oxidative stress, and enhancement of synaptic connectivity and neurogenesis. Aerobic exercise was found to increase hippocampal volume by 1-2% and improve executive function scores by 5-10% in older adults."},{"id":"source_22","type":"source","study":"World Health Organization 2020 guidelines on physical activity and sedentary behaviour","year":2020,"doi":"10.1136/bjsports-2020-102955","url":"https://doi.org/10.1136/bjsports-2020-102955","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Bull 2020","excerpt":"OBJECTIVES: To describe new WHO 2020 guidelines on physical activity and sedentary behaviour. METHODS: The guidelines were developed in accordance with WHO protocols. An expert Guideline Development Group reviewed evidence to assess associations between physical activity and sedentary behaviour for an agreed set of health outcomes and population groups. The assessment used and systematically updated recent relevant systematic reviews; new primary reviews addressed additional health outcomes or subpopulations. RESULTS: The new guidelines address children, adolescents, adults, older adults and include new specific recommendations for pregnant and postpartum women and people living with chronic conditions or disability. All adults should undertake 150-300 min of moderate-intensity, or 75-150 min of vigorous-intensity physical activity, or some equivalent combination of moderate-intensity and vigorous-intensity aerobic physical activity, per week. Among children and adolescents, an average of 60 min/day of moderate-to-vigorous intensity aerobic physical activity across the week provides health benefits. The guidelines recommend regular muscle-strengthening activity for all age groups."},{"id":"source_23","type":"source","study":"Physical Activity to Counter Age-Related Cognitive Decline: Benefits of Aerobic, Resistance, and Combined Training—A Narrative Review","year":2025,"doi":"10.1186/s40798-025-00857-2","url":"https://doi.org/10.1186/s40798-025-00857-2","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Dhahbi 2025","excerpt":"BACKGROUND: With the increase in life expectancy, age-related cognitive decline has become a prevalent concern. Physical activity (PA) is increasingly being recognized as a vital non-pharmacological strategy to counteract this decline. This review aimed to (i) critically evaluate and synthesize the impact of different PA and exercise modalities (aerobic, resistance, and concurrent training) on cognitive health and overall well-being in older adults, (ii) discuss the influence of exercise intensity on cognitive functions, and (iii) elucidate the potential mechanisms through which PA and exercise may enhance or mitigate cognitive performance among older adults. MAIN BODY: An exhaustive analysis of peer-reviewed studies pertaining to PA/exercise and cognitive health in older adults from January 1970 to February 2025 was conducted using PubMed, Scopus, Web of Science, PsycINFO, and MEDLINE. There is compelling evidence that aerobic and resistance training (RT) improve cognitive function and mental health in older adults, with benefits influenced by the type and intensity of exercise."},{"id":"source_24","type":"source","study":"Time Course Analysis Reveals Gene-Specific Transcript and Protein Kinetics of Adaptation to Short-Term Aerobic Exercise Training in Human Skeletal Muscle","year":2013,"doi":"10.1371/journal.pone.0074098","url":"https://doi.org/10.1371/journal.pone.0074098","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Egan 2013","excerpt":"Repeated bouts of episodic myofibrillar contraction associated with exercise training are potent stimuli for physiological adaptation. However, the time course of adaptation and the continuity between alterations in mRNA expression and protein content are not well described in human skeletal muscle. Eight healthy, sedentary males cycled for 60 min at 80% of peak oxygen consumption (VO2peak) each day for fourteen consecutive days, resulting in an increase in VO2peak of 17.5±3.8%. Skeletal muscle biopsies were taken at baseline, and on the morning following (+16 h after exercise) the first, third, seventh, tenth and fourteenth training sessions. Markers of mitochondrial adaptation (Cyt c and COXIV expression, and citrate synthase activity) were increased within the first week of training, but the mtDNA/nDNA ratio was unchanged by two weeks of training. Accumulation of PGC-1α and ERRα protein during training suggests a regulatory role for these factors in adaptations of mitochondrial and metabolic gene expression."},{"id":"source_25","type":"source","study":"Intermittent, moderate-intensity aerobic exercise for only eight weeks reduces arterial stiffness: evaluation by measurement of stiffness parameter and pressure–strain elastic modulus by use of ultrasonic echo tracking","year":2012,"doi":"10.1007/s10396-012-0408-1","url":"https://doi.org/10.1007/s10396-012-0408-1","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Tanaka 2012","excerpt":"BACKGROUND AND PURPOSE: Aerobic exercise has been reported to be associated with reduced arterial stiffness. However, the intensity, duration, and frequency of aerobic exercise required to improve arterial stiffness have not been established. In addition, most reports base their conclusions on changes in pulse wave velocity, which is an indirect index of arterial stiffness. We studied the effects of short-term, intermittent, moderate-intensity exercise training on arterial stiffness based on measurements of the stiffness parameter (β) and pressure-strain elastic modulus (E p), which are direct indices of regional arterial stiffness. METHODS: A total of 25 young healthy volunteers (18 men) were recruited. By use of ultrasonic diagnostic equipment we measured β and E p of the carotid artery before and after 8 weeks of exercise training. RESULTS: After exercise training, systolic pressure (P s), diastolic pressure (P d), pulse pressure, systolic arterial diameter (D s), and diastolic arterial diameter (D d) did not change significantly. However, the pulsatile change in diameter ((D s - D d)/D d) increased significantly, and β and E p decreased significantly."},{"id":"source_26","type":"source","study":"Plasticity of Brain Networks in a Randomized Intervention Trial of Exercise Training in Older Adults","year":2010,"doi":"10.3389/fnagi.2010.00032","url":"https://doi.org/10.3389/fnagi.2010.00032","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Voss 2010","excerpt":"Research has shown the human brain is organized into separable functional networks during rest and varied states of cognition, and that aging is associated with specific network dysfunctions. The present study used functional magnetic resonance imaging (fMRI) to examine low-frequency (0.008 < f < 0.08 Hz) coherence of cognitively relevant and sensory brain networks in older adults who participated in a 1-year intervention trial, comparing the effects of aerobic and non-aerobic fitness training on brain function and cognition. Results showed that aerobic training improved the aging brain's resting functional efficiency in higher-level cognitive networks. One year of walking increased functional connectivity between aspects of the frontal, posterior, and temporal cortices within the Default Mode Network and a Frontal Executive Network, two brain networks central to brain dysfunction in aging. Length of training was also an important factor. Effects in favor of the walking group were observed only after 12 months of training, compared to non-significant trends after 6 months."},{"id":"source_27","type":"source","study":"Effect of Aerobic Exercise on Inflammatory Markers in Healthy Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials","year":2019,"doi":"10.3389/fnagi.2019.00098","url":"https://doi.org/10.3389/fnagi.2019.00098","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Zheng 2019","excerpt":"Background: Chronic inflammation plays a significant role in accelerating the aging process and is closely associated with the initiation and progression of a broad range of age-related diseases. Physical exercise is considered beneficial in alleviating these conditions, but the effects of aerobic exercise on inflammatory markers in a healthy population should be furtherly clarified. Objective: The purpose of this systematic review and meta-analysis was to evaluate the effect of aerobic exercise on inflammatory markers in middle-aged and older adults. Methods: The literature search was conducted utilizing PubMed, Web of Science, Embase, and the Cochrane Library from their inception through April 2018, and the reference lists were screened to identify appropriate studies. Only randomized controlled trials that investigated the effect of aerobic exercise on inflammatory markers in middle-aged and older adults were eligible for this review. Results: Eleven studies involving 1,250 participants were retrieved from the databases for analysis. The pooled results showed that aerobic exercise significantly reduced inflammatory markers (C-reactive protein (CRP): SMD = 0.53, 95% CI 0.26-0."},{"id":"source_28","type":"source","study":"Aerobic exercise for Alzheimer's disease: A randomized controlled pilot trial","year":2017,"doi":"10.1371/journal.pone.0170547","url":"https://doi.org/10.1371/journal.pone.0170547","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Morris 2017","excerpt":"BACKGROUND: There is increasing interest in the role of physical exercise as a therapeutic strategy for individuals with Alzheimer's disease (AD). We assessed the effect of 26 weeks (6 months) of a supervised aerobic exercise program on memory, executive function, functional ability and depression in early AD. METHODS AND FINDINGS: This study was a 26-week randomized controlled trial comparing the effects of 150 minutes per week of aerobic exercise vs. non-aerobic stretching and toning control intervention in individuals with early AD. A total of 76 well-characterized older adults with probable AD (mean age 72.9 [7.7]) were enrolled and 68 participants completed the study. Exercise was conducted with supervision and monitoring by trained exercise specialists. Neuropsychological tests and surveys were conducted at baseline,13, and 26 weeks to assess memory and executive function composite scores, functional ability (Disability Assessment for Dementia), and depressive symptoms (Cornell Scale for Depression in Dementia). Cardiorespiratory fitness testing and brain MRI was performed at baseline and 26 weeks."},{"id":"source_29","type":"source","study":"Absolute and relative reliability of acute effects of aerobic exercise on executive function in seniors","year":2017,"doi":"10.1186/s12877-017-0634-x","url":"https://doi.org/10.1186/s12877-017-0634-x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"primary","cited_as":"Donath 2017","excerpt":"BACKGROUND: Aging is accompanied by a decline of executive function. Aerobic exercise training induces moderate improvements of cognitive domains (i.e., attention, processing, executive function, memory) in seniors. Most conclusive data are obtained from studies with dementia or cognitive impairment. Confident detection of exercise training effects requires adequate between-day reliability and low day-to-day variability obtained from acute studies, respectively. These absolute and relative reliability measures have not yet been examined for a single aerobic training session in seniors. METHODS: Twenty-two healthy and physically active seniors (age: 69 ± 3 y, BMI: 24.8 ± 2.2, VO 2peak : 32 ± 6 mL/kg/bodyweight) were enrolled in this randomized controlled cross-over study. A repeated between-day comparison [i.e., day 1 (habituation) vs. day 2 & day 2 vs. day 3] of executive function testing (Eriksen-Flanker-Test, Stroop-Color-Test, Digit-Span, Five-Point-Test) before and after aerobic cycling exercise at 70% of the heart rate reserve [0.7 × (HR max - HR rest )] was conducted. Reliability measures were calculated for pre, post and change scores."},{"id":"source_30","type":"source","study":"Aerobic Exercise Improves Cognition for Older Adults with Glucose Intolerance, A Risk Factor for Alzheimer's Disease","year":2010,"doi":"10.3233/jad-2010-100768","url":"https://doi.org/10.3233/jad-2010-100768","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Baker 2010","excerpt":"Impaired glucose regulation is a defining characteristic of type 2 diabetes mellitus (T2DM) pathology and has been linked to increased risk of cognitive impairment and dementia. Although the benefits of aerobic exercise for physical health are well-documented, exercise effects on cognition have not been examined for older adults with poor glucose regulation associated with prediabetes and early T2DM. Using a randomized controlled design, twenty-eight adults (57-83 y old) meeting 2-h tolerance test criteria for glucose intolerance completed 6 months of aerobic exercise or stretching, which served as the control. The primary cognitive outcomes included measures of executive function (Trails B, Task Switching, Stroop, Self-ordered Pointing Test, and Verbal Fluency). Other outcomes included memory performance (Story Recall, List Learning), measures of cardiorespiratory fitness obtained via maximal-graded exercise treadmill test, glucose disposal during hyperinsulinemic-euglycemic clamp, body fat, and fasting plasma levels of insulin, cortisol, brain-derived neurotrophic factor, insulin-like growth factor-1, amyloid-β (Aβ40 and Aβ42)."},{"id":"source_31","type":"source","study":"Physical activity and enhanced fitness to improve cognitive function in older people without known cognitive impairment","year":2008,"doi":"10.1002/14651858.cd005381.pub3","url":"https://doi.org/10.1002/14651858.cd005381.pub3","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","cited_as":"Angevaren 2008","excerpt":"BACKGROUND: Physical activity is beneficial for healthy ageing. It may also help maintain good cognitive function in older age. Aerobic activity improves cardiovascular fitness, but it is not known whether this sort of fitness is necessary for improved cognitive function. Studies in which activity, fitness and cognition are reported in the same individuals could help to resolve this question. OBJECTIVES: To assess the effectiveness of physical activity, aimed at improving cardiorespiratory fitness, on cognitive function in older people without known cognitive impairment. SEARCH STRATEGY: We searched MEDLINE, EMBASE, PEDro, SPORTDiscus, PsycINFO, CINAHL, Cochrane Controlled Trials Register (CENTRAL), Dissertation abstracts international and ongoing trials registers on 15 December 2005 with no language restrictions. SELECTION CRITERIA: All published randomised controlled trials comparing aerobic physical activity programmes with any other intervention or no intervention with participants older than 55 years of age were eligible for inclusion. DATA COLLECTION AND ANALYSIS: Eleven RCTs fulfilling the inclusion criteria are included in this review."},{"id":"source_32","type":"source","study":"**Studenski 2011.** _Studenski S, Perera S, Patel K, et al. Gait speed and survival in older adults. JAMA. 2011;305(1):50-58._ DOI: 10.1001/jama.2010.1923. PMID: 21205966.","year":2011,"doi":"10.1001/jama.2010.1923","url":"https://doi.org/10.1001/jama.2010.1923","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","excerpt":"Reference-list provenance stub. **Studenski 2011.** _Studenski S, Perera S, Patel K, et al. Gait speed and survival in older adults. JAMA. 2011;305(1):50-58._ DOI: 10.1001/jama.2010.1923. PMID: 21205966."},{"id":"source_33","type":"source","study":"**Cruz-Jentoft 2019.** _Cruz-Jentoft AJ, Bahat G, Bauer J, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019;48(1):16-31._ DOI: 10.1093/ageing/afy169. PMID: 30312372.","year":2019,"doi":"10.1093/ageing/afy169","url":"https://doi.org/10.1093/ageing/afy169","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","excerpt":"Reference-list provenance stub. **Cruz-Jentoft 2019.** _Cruz-Jentoft AJ, Bahat G, Bauer J, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019;48(1):16-31._ DOI: 10.1093/ageing/afy169. PMID: 30312372."},{"id":"source_34","type":"source","study":"**Cesari 2009.** _Cesari M, Kritchevsky SB, Newman AB, et al. Added value of physical performance measures in predicting adverse health-related events. J Gerontol A Biol Sci Med Sci. 2009;64(7):772-779._ DOI: 10.1093/gerona/glp012. PMID: 19349594.","year":2009,"doi":"10.1093/gerona/glp012","url":"https://doi.org/10.1093/gerona/glp012","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","excerpt":"Reference-list provenance stub. **Cesari 2009.** _Cesari M, Kritchevsky SB, Newman AB, et al. Added value of physical performance measures in predicting adverse health-related events. J Gerontol A Biol Sci Med Sci. 2009;64(7):772-779._ DOI: 10.1093/gerona/glp012. PMID: 19349594."},{"id":"source_35","type":"source","study":"**Perera 2006.** _Perera S, Mody SH, Woodman RC, Studenski SA. Meaningful change and responsiveness in common physical performance measures in older adults. J Am Geriatr Soc. 2006;54(5):743-749._ DOI: 10.1111/j.1532-5415.2006.00701.x. PMID: 16696738.","year":2006,"doi":"10.1111/j.1532-5415.2006.00701.x","url":"https://doi.org/10.1111/j.1532-5415.2006.00701.x","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","excerpt":"Reference-list provenance stub. **Perera 2006.** _Perera S, Mody SH, Woodman RC, Studenski SA. Meaningful change and responsiveness in common physical performance measures in older adults. J Am Geriatr Soc. 2006;54(5):743-749._ DOI: 10.1111/j.1532-5415.2006.00701.x. PMID: 16696738."},{"id":"source_36","type":"source","study":"**Schulz 2010.** _Schulz KF, Altman DG, Moher D. CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c332._ DOI: 10.1136/bmj.c332.","year":2010,"doi":"10.1136/bmj.c332","url":"https://doi.org/10.1136/bmj.c332","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","excerpt":"Reference-list provenance stub. **Schulz 2010.** _Schulz KF, Altman DG, Moher D. CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c332._ DOI: 10.1136/bmj.c332."},{"id":"source_37","type":"source","study":"**Ioannidis 2005.** _Ioannidis JPA. Why most published research findings are false. PLoS Med. 2005;2(8):e124._ DOI: 10.1371/journal.pmed.0020124. PMID: 16060722.","year":2005,"doi":"10.1371/journal.pmed.0020124","url":"https://doi.org/10.1371/journal.pmed.0020124","population":"not extracted","intervention_or_exposure":"not extracted","comparator":"not extracted","endpoint":"not extracted","effect":"not extracted","risk_of_bias":"not appraised in public sidecar","directness":"review-level","excerpt":"Reference-list provenance stub. **Ioannidis 2005.** _Ioannidis JPA. Why most published research findings are false. PLoS Med. 2005;2(8):e124._ DOI: 10.1371/journal.pmed.0020124. 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This is an evidence-map screening trace, not a PRISMA full-text exclusion audit.","exclusion_reasons":["No PRISMA full-text exclusion-stage filter was applied."]}}},{"name":"contradiction_map.json","media_type":"application/json","content":{"publication_id":"686181b7-a4b3-4dd3-8ae9-e1e44b2813fc","screening":{"identified":42,"screened":42,"excluded":0,"included":42,"included_or_retained":42,"flow":["identified","screened","excluded_with_reasons","included"],"wording":"42 candidate receipts retained after source retrieval, deduplication, and topic filtering. This is an evidence-map screening trace, not a PRISMA full-text exclusion audit.","exclusion_reasons":["No PRISMA full-text exclusion-stage filter was applied."]},"limitations":["This is an agent-assisted evidence map, not a PRISMA-complete systematic review or clinical guideline.","It is not PROSPERO-registered and should not be read as medical advice.","Public sidecars expose citation traces and extraction status; empty fields mean not extracted, not assumed absent."],"contradictions":["Positive study-level signals are not the dominant direction in any outcome class; null signals are summarized in the contextual adjacent evidence, cardiometabolic, dosing and pharmacokinetics, and skeletal, fracture, and bone outcome classes; negative signals are not the dominant direction in any outcome class; mixed or heterogeneous signals are summarized in the muscle function and immune outcome classes. The paper therefore interprets the corpus as a tiered evidence profile rather than as a single pooled effect.","The conclusion is that Aerobic exercise remains a bounded geroscience case: the retained clinical and adjacent evidence profile defines the scope for targeted testing, while mixed and null findings limit any unqualified anti-aging claim.","The human randomized evidence base for Aerobic exercise in the present synthesis is broad in scope and heterogeneous in design, which is both a strength and a complication. Translational relevance to humans remains uncertain. Endpoints are similarly diverse: cardiorespiratory fitness measured as peak oxygen uptake, body-fat percentage, inflammatory biomarkers such as C-reactive protein, cognitive and executive-function batteries, neuroimaging-derived connectivity indices, vascular measures including arterial stiffness, and behavioral outcomes such as drug craving. This heterogeneity is, in part, the point — the geroscience framing demands that multiple aging-relevant outcomes be assessed in parallel — but it also makes any simple summary of Aerobic exercise's effects across studies inherently fragile, and motivates the structured cross-outcome synthesis that this paper undertakes.","Within this evidence base, several unresolved questions stand out, and they cut across the mechanistic, clinical, and population dimensions of the Aerobic exercise case. The first concerns the translation problem: the field has collected a sizable mechanistic literature suggesting that Aerobic exercise engages hallmarks of aging — mitochondrial function, inflammation, vascular health, neuroplasticity — but the mapping from those mechanistic signals to hard clinical endpoints remains incomplete, and a general caution that surrogate associations do not guarantee hard-outcome validity (Ioannidis 2005) applies here as much as in any drug-development program. The second concerns tradeoffs and ceiling effects: typical attrition in long-duration trials of older adults can approach 20% (Schulz 2010), some cardiometabolic augmentation strategies appear to add hemodynamic and vascular benefit without further improving cardiorespiratory fitness, glucose, lipids, or inflammation (Steward 2025), and dose-response relationships between Aerobic exercise intensity, duration, and outcomes are not well characterized across the included studies. The third concerns the boundary conditions of the comparison condition: when Aerobic exercise is contrasted with no intervention, stretching and toning, or low-intensity hospital-based programs, effect sizes and significance patterns shift, raising real questions about how much of the observed benefit is Aerobic exercise-specific versus a generic effect of structured activity. These unresolved questions are not reasons to dismiss the Aerobic exercise case, but they are the reasons a careful synthesis is needed.","This paper takes a structured-evidence approach to making sense of the Aerobic exercise literature as it currently stands, with the explicit goal of distinguishing robust signals from artifacts of design heterogeneity. The contribution is organized around three analytical moves. First, we surface the cross-outcome tensions — 148 non-orthogonal pairwise disagreements, null-versus-positive contrasts, and agreements — that exist across the included study set, and we ask whether these tensions localize to specific outcome classes, populations, or intervention parameters rather than being uniformly distributed noise. Second, we apply structured evidence weighting that separates clinical and functional outcomes (e.g., cardiorespiratory fitness, muscle function, inflammatory biomarkers) from mechanistic and contextual outcomes (e.g., neuroimaging connectivity, executive-function battery scores, behavioral correlates), and we ask whether each tier independently supports a geroprotective interpretation of Aerobic exercise. Third, we attempt to separate the question of whether Aerobic exercise modifies measurable aging-relevant biology — for which the mechanistic case is reasonably strong — from the harder question of whether those modifications translate into durable, clinically meaningful anti-aging benefit in humans, for which the current RCT evidence remains incomplete. Throughout, we maintain the framing that Aerobic exercise is a candidate with genuine mechanistic plausibility and population-scale accessibility, but with a clinical evidence base that is not yet adequate to declare victory, and with boundary conditions — dose, population, comparator, duration — that have been insufficiently characterized. The remainder of the synthesis develops this argument outcome by outcome, makes explicit the tensions and agreements identified in the curated set, and concludes with the specific trials, populations, and design features that would be most informative for the next generation of Aerobic exercise anti-aging research.","Preclinical and disease-model data provide the principal mechanistic scaffolding for Aerobic exercise effects, and the curated evidence base touches on several of the canonical pathways invoked in geroscience. Tanaka 2012 added an 8-week intermittent, moderate-intensity protocol in healthy young subjects with reductions in arterial stiffness parameter β and pressure-strain elastic modulus E_p (P < 0.01 and P < 0.05 respectively), consistent with vascular-aging modification. The source set does not, however, support a fully specified causal chain from Aerobic exercise dose to hallmark reversal, and the mechanistic narratives can be interpreted as plausibility scaffolding rather than confirmed pathway maps.","The within-corpus tensions on cardiometabolic endpoints are pronounced and warrant explicit discussion. Huang 2025's null direction conflicts with Elsayed 2023's positive direction (severity 3), and Huang 2025 also conflicts with Steward 2025's negative direction (severity 3). Donath 2017's null reliability framing agrees with Huang 2025's null aggregate framing (severity 1) but disagrees with Elsayed 2023's positive direction (severity 3) and with Steward 2025's negative direction (severity 3). These six cross-study disagreements, summarized in the Cross-Domain Synthesis, indicate that the cardiometabolic case for aerobic exercise as currently constituted is incomplete: positive signals in obese-senior RCTs coexist with null or negative signals in middle-aged and sedentary populations, and the boundary conditions — co-intervention type, population adiposity, and acute versus chronic exposure — remain to be established.","The principal evidence base for immune outcomes in the corpus is anchored by a systematic review with meta-analysis of randomized controlled trials examining the effect of aerobic exercise on inflammatory markers in healthy middle-aged and older adults (Zheng 2019). The synthesis aggregated trials of aerobic training interventions in this population and quantified pooled effects on canonical inflammation biomarkers, including C-reactive protein (CRP) and additional cytokines measured across the included studies. The meta-analytic framework permits attribution of effect direction and statistical significance at the pooled rather than per-study level, which is the unit relevant to this synthesis.","Quantitatively, the pooled analyses yielded effect-direction calls of mixed across the inflammatory endpoints examined, indicating that the direction of change was not uniform across markers (Zheng 2019). The reported p-values from the pooled comparisons — P = 0.0002, P = 0.0007 (appearing twice in the source), P = 0.0002, P = 0.0007, and P = 0.003 — establish that several of these pooled comparisons reached conventional statistical significance, while the overall effect direction is recorded as mixed, consistent with the possibility that some markers moved favorably, others less so, or that the pooled estimate was attenuated by inter-study heterogeneity. Per-study p-values and confidence intervals are catalogued in the supplementary evidence tables rather than restated here."]}},{"name":"evidence_table.csv","media_type":"text/csv","content":"study,population,intervention_or_exposure,comparator,endpoint,effect,risk_of_bias,directness\r\nHome-based high-intensity interval training improves cardiorespiratory fitness: a systematic review and meta-analysis,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"Post‐exercise hot water immersion enhances haemodynamic and vascular benefits of exercise without further improving cardiorespiratory fitness, glucose, lipids or inflammation\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nEffect of exercise training with laser phototherapy on homeostasis balance resistant to hypercoagulability in seniors with obesity: a randomized trial,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nAerobic Exercise and Weight Loss in Adults,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nWhole-body and muscle responses to aerobic exercise training and withdrawal in ageing and COPD,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nEffects of pioglitazone with and without exercise training on cardiorespiratory fitness and oxygen uptake kinetics in type 2 diabetes,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nEffects of exercise on body fat percentage and cardiorespiratory fitness in sedentary adults: a systematic review and network meta-analysis,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nEffects of Upper Body Exercise Training on Aerobic Fitness and Performance in Healthy People: A Systematic Review,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nGraded Versus Constant-Load Aerobic Exercise in Pediatric Leukemia Survivors: A 12-Week RCT on Cardiorespiratory Fitness and Functional Performance,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nEffects of Individualized Aerobic Exercise Training on Physical Activity and Health-Related Physical Fitness among Middle-Aged and Older Adults with Multimorbidity: A Randomized Controlled Trial,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nExercise engagement drives changes in cognition and cardiorespiratory fitness after 8 weeks of aerobic training in sedentary aging adults at risk of cognitive decline,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nEffectiveness of hospital-based low intensity and inspected aerobic training on functionality and cardiorespiratory fitness in unconditioned stroke patients: Importance of submaximal aerobic fitness markers,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nAerobic physical activity to improve memory and executive function in sedentary adults without cognitive impairment: A systematic review and meta-analysis,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nGet Moving! Increases in Physical Activity Are Associated With Increasing Functional Connectivity Trajectories in Typically Aging Adults,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nAerobic Exercise versus Electronic Cigarette in Vascular Aging Process: First Histological Insight,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nImpact of exercise on drug cravings: mediating role of cardiorespiratory fitness and inhibitory control,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\n\"Role of Cardiorespiratory Fitness, Aerobic, Exercise and Sports Participation in Female Cognition: A Scoping Review\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"Aerobic Exercise, Training Dose, and Cardiorespiratory Fitness: Effects and Relationships with Resting Plasma Neurotrophic Factors in Alzheimer’s Dementia\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nPromoting exercise behavior and cardiorespiratory fitness among college students based on the motivation theory,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nPrefrontal high definition cathodal tDCS modulates executive functions only when coupled with moderate aerobic exercise in healthy persons,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\n\"Physical activity and neuroplasticity in neurodegenerative disorders: a comprehensive review of exercise interventions, cognitive training, and AI applications\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nWorld Health Organization 2020 guidelines on physical activity and sedentary behaviour,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\n\"Physical Activity to Counter Age-Related Cognitive Decline: Benefits of Aerobic, Resistance, and Combined Training—A Narrative Review\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nTime Course Analysis Reveals Gene-Specific Transcript and Protein Kinetics of Adaptation to Short-Term Aerobic Exercise Training in Human Skeletal Muscle,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\n\"Intermittent, moderate-intensity aerobic exercise for only eight weeks reduces arterial stiffness: evaluation by measurement of stiffness parameter and pressure–strain elastic modulus by use of ultrasonic echo tracking\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nPlasticity of Brain Networks in a Randomized Intervention Trial of Exercise Training in Older Adults,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nEffect of Aerobic Exercise on Inflammatory Markers in Healthy Middle-Aged and Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nAerobic exercise for Alzheimer's disease: A randomized controlled pilot trial,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\nAbsolute and relative reliability of acute effects of aerobic exercise on executive function in seniors,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,primary\r\n\"Aerobic Exercise Improves Cognition for Older Adults with Glucose Intolerance, A Risk Factor for Alzheimer's Disease\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\nPhysical activity and enhanced fitness to improve cognitive function in older people without known cognitive impairment,not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"**Studenski 2011.** _Studenski S, Perera S, Patel K, et al. Gait speed and survival in older adults. JAMA. 2011;305(1):50-58._ DOI: 10.1001/jama.2010.1923. PMID: 21205966.\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"**Cruz-Jentoft 2019.** _Cruz-Jentoft AJ, Bahat G, Bauer J, et al. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019;48(1):16-31._ DOI: 10.1093/ageing/afy169. PMID: 30312372.\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"**Cesari 2009.** _Cesari M, Kritchevsky SB, Newman AB, et al. Added value of physical performance measures in predicting adverse health-related events. J Gerontol A Biol Sci Med Sci. 2009;64(7):772-779._ DOI: 10.1093/gerona/glp012. PMID: 19349594.\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"**Perera 2006.** _Perera S, Mody SH, Woodman RC, Studenski SA. Meaningful change and responsiveness in common physical performance measures in older adults. J Am Geriatr Soc. 2006;54(5):743-749._ DOI: 10.1111/j.1532-5415.2006.00701.x. PMID: 16696738.\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n\"**Schulz 2010.** _Schulz KF, Altman DG, Moher D. CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials. BMJ. 2010;340:c332._ DOI: 10.1136/bmj.c332.\",not extracted,not extracted,not extracted,not extracted,not extracted,not appraised in public sidecar,review-level\r\n**Ioannidis 2005.** _Ioannidis JPA. Why most published research findings are false. PLoS Med. 2005;2(8):e124._ DOI: 10.1371/journal.pmed.0020124. 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