BACKGROUND: Cardiovascular disease (CVD) continues to be the No. 1 cause of death in the United States and globally, and individuals with a history of a cardiac event are at increased risk for a repeat event. Physical inactivity creates health problems for individuals with chronic heart disease. Evidence shows that physical activity (PA), as a central component of cardiac rehabilitation phase II (CRII), decreases hospital readmission and mortality. Yet, individual adherence to PA tends to decline several months following CRII completion. OBJECTIVE: The purpose of this review was to evaluate current literature for interventions designed to assist individuals diagnosed with myocardial infarction (MI), coronary artery bypass graft (CABG), coronary artery disease (CAD), and percutaneous coronary intervention (PCI) to maintain or increase PA post-CRII. METHODS: A systematic search of 5 electronic databases including hand-searched articles between 2000 and 2019. Key Medical Subject Headings (MeSH) search terms included cardiac rehabilitation, intervention, exercise or PA, outcomes, compliance, adherence, or maintenance. Only interventions implemented following CRII program completion were included for review. RESULTS: Based on the inclusion criteria, the search yielded 19 randomized control trials retained for descriptive analysis. Interventions were categorized into 3 domains. The intervention designs varied widely in terms of duration of the intervention and the length of time to outcome measurement. Most interventions were short-term with only 2 studies offering a long-term intervention of greater than 1 year. Interventions using a theoretical approach most often included a cognitive-behavioral model. CONCLUSIONS: Interventions offered shortly after completion of CRII may help cardiac patients maintain PA and reduce the risk of experiencing additional cardiac events; however, more quality research is needed. Additional research to examine PA maintenance in older adults (70 years and older) would be valuable based on the increase in average lifespan. Studies with larger and more diverse samples, and less variation in methods and outcomes would greatly increase the ability to conduct a high-quality meta-analysis.

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