Various Forms of Cardiac Rehabilitation and Their Effect on Frailty Syndrome in Cardiac Patients—A Systematic Review

Background: The growing population of the elderly is accompanied by an increase in the number of people with frailty syndrome. Apart from advanced age, the occurrence of cardiovascular diseases is also one of the agents favorable to frailty that is a factor aggravating the disease prognosis. However, it is worth noting that this is an agent changeable by, i.a., movement rehabilitation. Cardiac rehabilitation (CR) based on comprehensiveness, early implementation, and multiplicity is standard intervention in patients with cardiovascular diseases. In cardiac patients with accompanying frailty or pre-frailty syndrome, it is worth making efforts to upgrade the CR program. Methods: Studies on the effect of cardiac rehabilitation or its modifications on the level of frailty of patients with cardiovascular disease were analyzed. Results: Training programs based on endurance training should be supplemented by resistance, balance, mobility, and respiratory exercises. Furthermore, it is important to educate patients about the need to increase daily physical activity. This review presents different approaches to CR (traditional CR, multicomponent training, training with a HAL (Hybrid Assistive Limb), and prehabilitation) and their impact on frailty score. Summary: Early implemented and comprehensive rehabilitation allows for the improvement of the clinical state and for a decrease in overall frailty. It also guarantees safety during everyday activities. It is crucial for the fitness of the elderly to encourage them to increase daily physical activity and to exercises at home.