The first mobilization of patients undergoing surgical treatment for lumbar disc herniation in the clinics where the study will be conducted is routinely performed within the first 24 hours after surgery. When the data collection process of the control group is completed, the data will be integrated with the mobilization protocol assisted with simulated clinical immersion videos created for the research.

Mobilization Protocol Assisted with Simulated Clinical Immersion Videos Simulated clinical immersion videos created for the mobilization protocol for patients in the intervention group will be sent to their smartphones once they are admitted to the clinic. The videos prepared within the scope of the mobilization protocol will be watched by patients in company with the researcher the day before the operation, their questions will be answered, and the correct mobilization techniques will be shown practically. It is expected that patients watch the videos at least four times, as twice with the researcher and twice by themselves.

Mobilization Protocol Assisted with Simulated Clinical Immersion Videos Simulated clinical immersion videos created for the mobilization protocol for patients in the intervention group will be sent to their smartphones once they are admitted to the clinic. The videos prepared within the scope of the mobilization protocol will be watched by patients in company with the researcher the day before the operation, their questions will be answered, and the correct mobilization techniques will be shown practically. It is expected that patients watch the videos at least four times, as twice with the researcher and twice by themselves.

The Visual Analog Scale (VAS) is a straight horizontal line of 100 mm. One end describes no paint at all while the other describes an excessive amount of pain. VAS score is calculated by measuring in millimeters from the left end of the line to the point marked by the patient. VAS will be used to assess low back pain (VAS-BP) and right and left leg pain (VAS-LP) separately (Nayak, Coats, Abdullah, Stein, & Malhotra, 2015).

Tampa Scale for Kinesiophobia (TKS): The TKS is used to assess the subjective degree of kinesiophobia or fear of movement, and consists of 17 items. The 4-point Likert-type scale ranges from 1 to 4 (1=Strongly disagree, 4=Completely agree). The overall score is calculated after reverse scoring the items 4, 8, 12 and 16. The overall scale score ranges between 17 and 68, and higher scores indicate higher level of kinesiophobia (Yılmaz et al., 2011).

Patient Mobility Scale: The level of pain and difficulty that patients experience doing four activities (turning from side to side in bed, sitting on the edge of the bed, sitting up at the side of the bed, walking in hospital room) during the postoperative period are assessed using a 15-cm visual analogue, throughout which verbal expressions are included. The lowest and highest possible scores obtained from each item ranges between 0 and 15, and the overall scale score ranges between 0 and 120. Higher scores indicate higher level of pain and difficulty (Ayoğlu, 2011).

Patients' satisfaction with the care they receive will be assessed using a Visual Analog Scale. The Visual Analog Scale (VAS) is a straight horizontal line of 100 mm. One end describes not satisfied at all, while the other describes high level of satisfaction. VAS score is calculated by measuring in millimeters from the left end of the line to the point marked by the patient. Higher scores indicate higher level of satisfaction.