Effects of Rigid Taping in Acromioclavicular Joint Degeneration

Inclusion Criteria: * A clinical diagnosis of acromioclavicular (AC) joint degeneration confirmed by clinical examination and imaging (X-ray, ultrasound, or MRI). * Shoulder pain duration of at least 4 weeks. * Age between 18 and 65 years * Willingness to refrain from any additional treatments outside the study protocol during the study period (e.g., medication changes, injections, or physiotherapy elsewhere) and to provide written informed consent Exclusion Criteria: * Current or previous diagnosis/history of acromioclavicular (AC) joint separation. * Diagnosis of frozen shoulder (adhesive capsulitis). * History of acute trauma or fracture involving the shoulder girdle (e.g., clavicle fracture, shoulder dislocation). * History of shoulder surgery. * Systemic inflammatory joint disease (e.g., rheumatoid arthritis) or other systemic arthropathies. * Skin conditions preventing taping (e.g., rash, open wound, or known tape allergy). * Neuromuscular disease or neurological disorders affecting shoulder function