Rotator cuff series; Subscapularis

Subscapularis is the largest of the rotator cuff (“RC“) muscles; it lies inside/under the shoulder blade itself, and is responsible for internal rotation. Our research and experience shows that, in the vast majority of the population (excepting two groups, mentioned below) the shoulder--arm function ’internal rotation’ is much stronger than external rotation. Loosening the internal rotator cuff muscle (subscapularis) and strengthening and stretching the external rotator cuff muscles (infraspinatus and te