Each role is vital to proper arm function and can only occur when the anatomy around the shoulder is uncompromised. The presence of bony and soft tissue injury as well as muscle weakness and ...

to the shoulder blade (scapula). The rotator cuff provides stability for the shoulder joint and is responsible for rotating the arm both internally and externally. Most tennis players who ...

Optimal shoulder function requires good kinetic chain function, optimal stability, and coordination of the scapula in the overhead action. A well balanced action of the rotator cuff muscles and ...