Patient characteristics associated with initiation and maintenance of physical activity behaviour during and after cardiac rehabilitation

Le résumé fourni par la source

Physical inactivity is a major modifiable risk factor for cardiovascular disease and premature mortality, and is highly prevalent among patients with coronary artery disease (CAD). Cardiac rehabilitation (CR) is a cornerstone of secondary prevention and has been shown to improve physical activity (PA) levels and cardiovascular outcomes in the short term. However, many patients experience a gradual decline in physical activity following completion of CR, highlighting the challenge of achieving sustained behaviour change. Various intervention strategies have been developed to address this challenge, yet their effects have been variable and often modest. A potential explanation is the substantial interindividual variability in response to CR, which has received limited systematic attention to date. In particular, in patients with CAD it remains unclear which demographic, clinical, and lifestyle characteristics are associated with initial and maintained behaviour change, and in particular relapse in physical activity during and after CR. The STEP COACH dataset, which harmonizes individual-level data from multiple CR-related observational cohorts and randomized controlled trials, provides a unique opportunity to investigate these questions across diverse interventions and patient populations. The present study aims to identify baseline characteristics associated with initial behaviour change and maintenance of changes in objectively measured daily step count following CR. Gaining insight into which patients are most likely to initiate and sustain behaviour change, or relapse, may support the development of more personalized and timely strategies to promote long-term physical activity in patients with CAD.

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