In the preoperative period, patients in the control group completed the Patient Demographic Information Form and the Trait Anxiety Inventory. Patients were preoperatively informed about wearing a smart bracelet on postoperative days 1 and 2 to track step count and walking distance. Physiological parameters, state anxiety, and pain levels (Short-Form McGill Pain Questionnaire) were evaluated at pre-test, 30 minutes later, and 15 minutes after mobilization. Additionally, pain intensity was assessed immediately after mobilization. On postoperative days 1 and 2, all assessments were conducted twice daily. The frequency of analgesic administration was also monitored.

In the preoperative period, patients completed the Patient Demographic Information Form and the Trait Anxiety Inventory. Patients were preoperatively informed about wearing a smart bracelet on postoperative days 1 and 2 to track step count and walking distance. Furthermore, patients in the intervention group received video-assisted training on diaphragmatic breathing and progressive muscle relaxation (PMR) exercises.

In the intervention group, PMR was performed twice a day on postoperative days 1 and 2. Physiological parameters, state anxiety, and pain levels (Short-Form McGill Pain Questionnaire) were measured at pre-test, 5 minutes after each PMR session, and 15 minutes after mobilization. Additionally, pain intensity was assessed immediately after mobilization. The frequency of analgesic administration was also monitored.

The aim of relaxation exercises is to help individuals recognize the difference between tension and relaxation and to enable them to relax in situations of stress. These exercises are performed with light background music and verbal instructions, allowing patients to mentally focus on the process. The progressive relaxation technique involves the voluntary contraction and subsequent relaxation of muscle groups, typically starting from the hands and progressing to the feet, with each muscle group activated in sequence. During the exercise, the instructions and steps from the 'Relaxation Exercises' CD published by the Turkish Psychologists Association will be followed.

The first part includes questions about demographic characteristics such as gender, age, body mass index (height-weight), marital status, education level, income level and occupation, and the second part includes questions about other chronic diseases, previous surgery, previous stay in the intensive care unit, smoking and alcohol use.

The Trait Anxiety Inventory is used to determine how the individual "usually" feels and the items of the scale are scored between 1-4 points (1=almost never, 2=sometimes, 3=very often, 4=almost always). There are 7 reversed statements in the trait anxiety subscale (items 21, 26, 27, 30, 33, 36 and 39).

Physiological parameters will be monitored.

It is used to determine how the individual feels "right now" and the items of the scale are scored between 1-4 points (1=not at all, 2=somewhat, 3=very much, 4=completely).

The scale consists of three parts in which the nature of pain, intensity of pain and overall pain intensity are evaluated.

Mobilization will be assessed on postoperative days 1 and 2 based on the number of steps taken, distance covered, and relevant features of the mobilization process.