Daily PubMed evidence board
Effects of different exercise modes on cardiopulmonary function in patients with coronary artery disease: a systematic review and meta-analysis.
This systematic review and meta-analysis pooled randomized trials of exercise in patients with coronary artery disease (total reported n = 1,730 across 23…
Signal score64Research triage score
CertaintyModerateVerify in full text
PMID42218418Source identifier
Research triage, not medical advice
Do not use this summary, score, or benefit-cost estimate to diagnose, treat, prescribe, or change care without reviewing the full study and consulting qualified professionals.
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Plain-English signal
This systematic review and meta-analysis pooled randomized trials of exercise in patients with coronary artery disease (total reported n = 1,730 across 23 studies). The authors compared different exercise types - aerobic (AE), high-intensity interval training (HIIT), aerobic plus resistance (AE&RE), Chinese traditional exercise (CTE), and aerobic plus Chinese traditional exercise (AE&CTE). Across studies, exercise improved key measures of heart and lung fitness: peak oxygen uptake (VO2peak), O2 pulse, left ventricular ejection fraction (LVEF), and anaerobic threshold (AT). Numerically larger improvements in VO2peak were reported for AE&CTE and HIIT; AE&RE and AE also showed benefits. The abstract indicates exercise of various modes benefits cardiopulmonary function, but the full paper should be checked for details on study quality, absolute benefit sizes, and harms before changing practice.
Why it matters
- Coronary artery disease (CAD) is a leading cause of morbidity; interventions that improve cardiorespiratory fitness (VO2peak, O2 pulse, LVEF, AT) can affect functional status, rehabilitation outcomes, and potentially prognosis.
- The review compares multiple exercise modalities (AE, HIIT, AE&RE, CTE, AE&CTE), which is directly relevant to tailoring cardiac rehabilitation programs and exercise prescriptions for CAD patients.
- The abstract reports statistically significant improvements in established physiologic end points (VO2peak, O2 pulse, LVEF, AT) - outcomes commonly used to evaluate cardiac rehabilitation effectiveness and guide resource allocation.
Primary outcomes
- VO2 peak (peak oxygen consumption)
- O2 pulse
- Left ventricular ejection fraction (LVEF)
- Anaerobic threshold (AT)
Effect summary
Abstract-reported pooled mean differences indicate exercise interventions improved VO2peak (MD = 2.86 ml·kg−1·min−1, 95% CI 2.00 to 3.73) and other cardiopulmonary parameters. Numerically larger VO2peak effects were observed for AE&CTE and HIIT; AE&RE and AE also showed benefit. LVEF, O2 pulse, and AT improved in various subgroups (AE&RE, AE, AE&CTE).
Benefit-cost lens
| Quick take | The meta-analysis finds exercise interventions improve several cardiopulmonary outcomes in CAD. Translating this into policy or program changes requires local baseline rates, absolute effect magnitudes, program costs, and target population size. |
|---|---|
| BCR anchor | 2 |
| Time horizon | 3 |
| Discount rate | 0.03 |
| Assumptions | Assessment based only on PubMed metadata and abstract; full-text review required to verify methods, absolute effects, adverse events, and heterogeneity before decision-making. |
Benefit-cost fields are assumptions-based unless explicitly source-derived. Treat them as prompts for deeper economic review.
Risk of bias
| Tool | rapid-abstract-screen |
|---|---|
| Verdict | Some concerns |
| Notes | Assessment based on abstract only. The paper is a meta-analysis of RCTs, which is higher-level evidence, but risk-of-bias depends on included trial quality, heterogeneity, and publication bias assessments that require full-text extraction. Abstract mentions subgroup, sensitivity, and publication-bias analyses but does not report their results or influence. |
Harms, equity, conflicts & implementation
| Implementation | Full-text review to confirm intervention protocols, session frequency/duration, supervision level, eligibility criteria, safety monitoring, and adherence. Local cost, staff training, facility capacity, and patient preferences must be assessed before implementation. |
|---|---|
| Equity impact | Unclear from abstract. Equity implications depend on access to different exercise modalities (e.g., HIIT, supervised AE&RE, culturally specific CTE) and differential uptake/adherence across subgroups; full-text and local context needed. |
| Harms | Abstract does not report harms or adverse events; full-text review needed to assess safety signals, tolerability, and event rates by modality. |
| Funding | ZDYF2021GXJS018 Key Research and Development Project in Hainan |
| Replication | Unknown from abstract; replication would require re-extraction of included trials and cross-checking of pooled estimates. |
Source links — verify original
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