This study is a prospective cohort study and is a single-center clinical trial. Sample: This study will enroll about 22 patients from the Department of Sports Medicine and rehabilitation outpatient department of Beijing Third Hospital who are diagnosed with rotator cuff tear and choose conservative treatment.
Identify patients with rotator cuff tears and choose conservative treatment
Able to complete cardiopulmonary exercise tests
Able to cooperate with rehabilitation training and complete questionnaire survey
Previous shoulder surgery history
Irreparable rotator cuff damage
Retear after ARCR