Effects of a 4-week Low-intensity Training With 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: * Pain of an intensity that prevents performance of 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 drop arm test). * Suspected frozen shoulder (50% reduction or more than 30° loss of 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 injection within the last 6 weeks. * Presence of diseases such as inflammatory arthritis, neurological diseases, fibromyalgia, malignant tumors, or polymyalgia rheumatica. * Presence of comorbidities that increase cardiovascular risk, such as hypertension, diabetes, or heart failure. * Presence of more than one thromboembolism risk factor (obesity, history of thrombosis, prolonged immobilization, recent surgery, use of contraceptives, etc.). * Presence of active skin lesions in the area where the sleeve will be placed, recent scars or burns, or chronic dermatological diseases that compromi…