How to Perform Manual Resisted Test For The Supraspinatus Muscle 👉 The rotator cuff is a group of muscles and tendons that surround the shoulder joint, providing stability and enabling a wide range of shoulder movements. 👉 One of the key muscles in the rotator cuff is the supraspinatus, located on the top of the shoulder blade. It plays a vital role in lifting and rotating the arm. 👉 Injuries to the rotator cuff muscles, including the supraspinatus, can occur due to repetitive motion, trauma,