The experimental group patients were included in the cardiac rehabilitation program. The cardiac rehabilitation program was implemented in the cardiopulmonary rehabilitation unit with bicycle ergometry devices by a team consisting of a physical medicine and rehabilitation physician, physiotherapist and nurse. The target heart rate that could be achieved during exercise was determined according to the patient's age and the medications he/she used. The exercise intensity was planned as low and moderate according to the target heart rate percentage. The program was organized as 30 sessions, 5 days a week, for 6 weeks. The sessions were implemented for half an hour while the patients were monitored from the bicycle ergometry device.

The control group patients were not subjected to any program other than the training they received upon discharge, which was the routine operation of the clinics.

The experimental group patients were included in the cardiac rehabilitation program. The cardiac rehabilitation program was implemented in the cardiopulmonary rehabilitation unit with bicycle ergometry devices by a team consisting of a physical medicine and rehabilitation physician, physiotherapist and nurse. The target heart rate that could be achieved during exercise was determined according to the patient's age and the medications he/she used. The exercise intensity was planned as low and moderate according to the target heart rate percentage. The program was organized as 30 sessions, 5 days a week, for 6 weeks. The sessions were implemented for half an hour while the patients were monitored from the bicycle ergometry device.

SF-36 quality of life scale: Contains 36 items. Measurement of 8 dimensions is provided. These dimensions are: physical functioning, social functioning, role limitations due to physical problems, role limitations due to emotional problems, mental health, energy/vitality, pain and general health perception.

Pittsburgh Sleep Quality Index: Contains 24 questions in total. 19 of these are self-report questions. Five questions are answered by the spouse or a roommate and are used for clinical information only. They are not included in the scoring. It has seven components. These components are subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbance, use of sleeping pills, and daytime dysfunction. Each item is scored between 0-3. A total score of 5 or higher indicates poor sleep quality.

Beck Depression Scale: Consists of 21 questions. Each question has 4 answer options scored between 0 and 3. A total score between 0-13 indicates no depression, 14-19 indicates mild depression, 20-18 indicates moderate depression, and 29-63 indicates severe depression.

Beck Anxiety Scale: Consists of 21 questions. Questions are scored between 0-3. The minimum score on the scale is 0, the maximum score is 63. Increasing scores on the scale indicate an increase in the anxiety level.

6-minute walking test: It is applied in a 30-meter corridor in a closed environment. The distance the patient walks in six minutes, oxygen saturation, heart rate, and changes in dyspnea are recorded.

FEV1, FVC and FEV1/FVC values with respiratory function test, echo test for ejection fraction, blood test for LDL values, height and weight values for body mass index