The PMR exercise, which includes the systematic relaxation of the main muscle groups of the body aimed at physical and psychological relaxation, was applied twice a day, every weekday, for eight weeks. PMR exercises and training on the application of these exercises were given to the patients individually by face-to-face interview method. During the training process, "Muscle Relaxation Exercises Practice Guide" and "Relaxation Exercises Audio Recordings", which were prepared by the researcher and included relaxation exercises, were used. Voice recordings were uploaded to each patient's mobile phone so that they could continue the application at home. The steps of the relaxation exercises were explained to the patient by the researcher and he was shown exactly how to do the exercises.

WB exercises training was given to the patients in this group individually by face-to-face interview. During the application, the importance of deep and comfortable breathing was explained and correct breathing technique was taught. Informing and application training took an average of 20-25 minutes for each patient. The patients were told to do the 10-minute application at home 3 times a day for 8 weeks. They were called once a week and asked whether they continued the practice and whether they had any difficulties during the exercises.

No intervention will be applied to the control group.

The PMR exercise, which includes the systematic relaxation of the main muscle groups of the body aimed at physical and psychological relaxation, was applied twice a day, every weekday, for eight weeks.

DB exercises training was given to the patients in this group individually by face-to-face interview. During the application, the importance of deep and comfortable breathing was explained and correct breathing technique was taught.

The COPD and Asthma Fatigue Scale (CAFS) was developed by Revicki et al. In the scale consisting of a total of 12 questions, the items of the questions are graded in a Likert type. The total raw score is obtained by summing all item scores, and the raw scores are converted to a total scale score between 0 and 100 points. The increase in the scale score indicates the increase in the fatigue level of the person.

The scale developed by Yorke et al. consists of 12 items measuring the severity of dyspnea. It consists of 4-point Likert type options. The highest score that can be obtained from the physical sub-dimension of the scale is 21, and the highest score that can be obtained from the emotional sub-dimension is 15. The lowest score of the scale is 0, and the highest score is 36. An increase in the score obtained from the scale indicates an increase in the severity of dyspnea.

Designed by PSQI, Buysee et al. PSQI specifically measures subjective sleep quality over a one-month period. The PSQI includes 19 items on seven subscales: subjective sleep quality, sleep duration, sleep disturbance, sleep delay, sleep efficiency, use of sleep medication, and daytime dysfunction. Items are scored on a 4-point Likert scale from 0 to 3 points. Scores of the subscales are added to an overall PSQI score. The total score of the questionnaire ranges from 1 to 21 points, where scores higher than 5 indicate poor sleep quality and scores lower than 5 indicate no sleep disturbance.