Pre-Surgery workout may boost shoulder rotation after replacement

This study tests whether doing specific shoulder exercises for 6 weeks before reverse shoulder replacement surgery helps patients regain better internal rotation (the ability to reach behind the back). Researchers will compare range of motion, strength, and daily activities between a group that does pre-surgery exercises and a group that does not. The study involves 64 adults aged 40-80 who are scheduled for shoulder replacement due to arthritis or rotator cuff problems.