CATEGORY: EXERCISE & MOVEMENT
People with coronary heart disease who went through cardiac rehabilitation had 28% fewer heart attacks and 35% fewer hospital stays of any kind than people who got usual care without a structured exercise program.1 That’s the headline from a major evidence review published in September, which pooled 107 randomized trials covering 26,886 people. The gap wasn’t subtle. Coronary heart disease means the arteries feeding the heart have narrowed. It remains the world’s leading cause of death.
What rehab actually involves
Cardiac rehabilitation is a structured program offered after a heart attack, bypass surgery, a stent, or a diagnosis of angina. The core is exercise training that starts gently and builds, usually alongside education about the condition and support for daily habits. Think of it as physical therapy for the heart: supervised, progressive, and tailored to what you can do. Every trial in the review split its patients at random, with some getting a rehab program and the rest getting ordinary care. Randomness is what lets the comparison carry weight. It means the rehab groups weren’t simply healthier or more motivated to begin with.
Fewer heart attacks, fewer hospital beds
The 28% drop in heart attacks was rated high-certainty evidence. That’s the review’s strongest grade. Admissions to the hospital for any reason fell by about a third. The review also found that rehab probably reduces deaths from any cause, though that evidence was rated with less certainty, and a separate pooled analysis of only the most recent trials found a clear drop in hospital stays but no clear difference in deaths.2 So the honest summary is this: the case for fewer heart attacks and hospitalizations is strong, and the case for living longer is suggestive but not settled. People in the programs also reported better physical functioning, energy, and mental wellbeing.
Home programs held up
One newer finding matters for anyone who can’t get to a hospital gym. Programs done at home, including digitally supported ones, appeared to work about as well as center-based programs. The senior author called that a game changer, since distance and schedules keep many people out of traditional rehab. A gap worth knowing about: women made up only 17% of trial participants, so the evidence base is thinnest for the people who make up half of everyone with heart disease.
Key Takeaways
- Across 107 randomized trials, cardiac rehabilitation cut heart attacks by 28% and all-cause hospital admissions by 35% in people with coronary heart disease.
- The evidence that rehab extends life is weaker than the evidence that it prevents heart attacks and hospital stays; an analysis limited to modern trials found no clear mortality difference.
- Home-based and digital programs performed about as well as hospital-based ones, and women remain underrepresented in the trials.
References
- Dibben G, de Vries FBG, Faulkner J, et al. Exercise-based cardiac rehabilitation for coronary heart disease. Cochrane Database of Systematic Reviews. 2026;9:CD001800. link
- Stens NA, Buckley BJR, Dibben GO, et al. Exercise-based cardiac rehabilitation for coronary heart disease: the CaReMATCH individual participant data meta-analysis. European Journal of Preventive Cardiology. 2026;33(6):841–853. link