Immediate Effects of Flossband and Mobilization With Movement on Shoulder Mobility in Volleyball Athletes

Participants in this arm will perform the standardized Floss Band (FBG) protocol. While seated with the shoulder at 90° abduction, the researcher will apply a compressive elastic band made of 100% polymer gel (T.P.E), measuring 210 cm in length, 5 cm in width, and 1.3 mm in thickness. The first anchor is placed two fingers medial to the acromion, and the band is wrapped around the shoulder until the second anchor at the end of the band is fixed. After the application, the participant will perform sport-specific movements (spike and serve) for 2 minutes. Following the completion of the compression period, the band will be removed. Assessments will be conducted at baseline and immediately post-intervention, including shoulder range of motion using a digital inclinometer, perception of movement fluency using a Visual Analogue Scale (VAS), and sport-specific performance tests (One-arm Seated Shot Put Test and Functional Throwing Performance Index).

Participants in this arm will perform the standardized Mobilization with Movement (MWM) protocol. While seated in a chair with back support and hips, knees, and ankles at 90° flexion, the researcher will stabilize the scapula with one hand and apply a posterolateral glide to the anterior humeral head with the other hand during active shoulder elevation in the scapular plane. The intervention consists of 3 sets of 10 repetitions, with a 1-minute rest interval between sets. Assessments will be conducted at baseline and immediately post-intervention, including shoulder range of motion using a digital inclinometer, perception of movement fluency using a Visual Analogue Scale (VAS), and sport-specific performance tests (One-arm Seated Shot Put Test and Functional Throwing Performance Index).