Harmonica Exercises for Patients Undergoing Cardiac Rehabilitation.

The study aims to assess the effects of exercises using the harmonica on the exercise capacity, the level of depressive symptoms and disease related quality of life in patients suffering from heart disease attending cardiac rehabilitation program. The main questions it aims to answer are: Does harmonica exercise improve exercise capacity in patints with herat disease? Does harmonica exercise affect depression levels and health-related quality of life in patients with heart disease? Researchers will explore the effect of harmonica exercise on exercise capacity and selected psychological aspects of patients participating in cardiac rehabilitation program Participants will: Complete a cardiac rehabilitation program with assessment of exercise capacity at the beginning and end of the program Perform breathing exercises only or breathing exercises and harmonica exercises Keep a diary of their exercises