Exercise-induced Hypoalgesia Effects of Blood Flow Restriction in People With Rotator Cuff-related Shoulder Pain

Inclusion Criteria: * Age between 18 and 65 * Shoulder symptoms lasting at least 3 months * Pain in the proximal anterolateral aspect of the shoulder, aggravated by abduction * At least two of the following tests positive: Jobe test, resisted external rotation test, Hawkins-Kennedy test, Neer test, painful arc between 60 and 120 degrees of shoulder abduction Exclusion Criteria: * History of shoulder trauma or surgery * Pain of such intensity that it is impossible to perform the proposed exercises * Active arm elevation less than 90 degrees * Clinical signs of a complete tear (positive delayed external and internal rotation sign and positive arm drop test) * Suspected frozen shoulder (50% reduction or more than 30° loss in passive shoulder external rotation) * Primary diagnosis of shoulder instability or acromioclavicular pathology * Shoulder pain due to primary involvement in the cervical or thoracic region * Corticosteroid injections in the last 6 weeks * Presence of diseases such as inflammatory arthritis, neurological diseases, fibromyalgia, malignant tumors, or polymyalgia rheumatica * Presence of more than one risk factor for thromboembolism * Participation in upper limb exercise programs in the last month