Adherence to Exercise and Functional Rehabilitation Programs in Patients with Cardiovascular Diseases: Barriers and Strategies

Adherence to exercise-based cardiac rehabilitation (CR) is essential for preventing and managing cardiovascular disease (CVD). Participation in CR reduces all-cause mortality by 27% and cardiac deaths by 31% and lowers rehospitalization rates while also improving functional capacity and quality of life. However, many patients do not start, complete, or maintain CR, resulting in reduced functional abilities, a higher risk of recurring events, and poorer long-term outcomes. This narrative review summarizes patterns of adherence to exercise and CR in CVD, with a specific focus on sex- and gender-related differences in referral, participation, and completion. We synthesize evidence on biological, psychological, and social barriers that limit engagement and describe emerging strategies, such as technology-enabled and home-based programs, multidisciplinary care, and family-centered models, to enhance adherence. Finally, we propose a practical, gender-aware framework for CR design and delivery that can be adjusted and evaluated across diverse healthcare settings to guide clinical practice and future research.