Predicting ROtator Cuff Tears Outcomes After Physical Therapy Treatment

Inclusion Criteria: * Full-thickness supraspinatus rotator cuff tear diagnosed by ultrasound imaging or magnetic resonance imaging. * Pain during resisted abduction and/or external rotation. * Pain intensity equal or greater to 3 points on a numeric pain rating scale, or a degree of disability equal or greater to 15% on the Shoulder Pain and Disability Index. * Pain lasting for at least 3 months. * Adequate comprehension of written and spoken Spanish Exclusion Criteria: * Loss of passive external rotation at 0º of shoulder abduction equal or greater to 50% compared to contralateral side. * Suspected neck-related shoulder pain. * Suspected visceral-related shoulder pain. * Sings or symptoms of shoulder instability, including dislocations and/or subluxation within the last year. * Humerus and/or scapular fractures within the last year. * Previous rotator cuff repair surgery within the last year. * Presence of cancer, fibromyalgia, neurological and/or other systemic diseases. * Cognitive impairment that makes it impossible to perform therapeutic exercise.