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[Significance of exercise capacity in cardiology].

Exercise capacity is reduced in many patients with cardiovascular disease. In post-acute myocardial infarction, ischemic heart disease and heart failure patients, exercise capacity has a strong independent prognostic impact. Even in subjects without history of heart disease, the lower the cardiorespiratory fitness the higher is the risk for cardiovascular events and mortality. With appropriate physical activity, exercise capacity is improved in most individuals. Improvement of functional capacity is associated with improvement of survival.