exercise
Subscapularis muscle
The pectoralis major muscle is anterior to the subscapularis muscles, as it lies in front of the shoulder joint and rib cage. The subscapularis muscles are located on the posterior aspect of the shoulder blade and assist in internal rotation of the arm.
subscapularis
Subscapularis
anterior
Lat. dorsi Pec major Subscapularis
subscapularis, supraspinatus, infraspinatus and teres minor
When the subscapularis muscle contracts concentrically, it performs internal rotation of the shoulder joint. This movement involves rotating the arm inward toward the midline of the body.
The prime mover for shoulder internal rotation is the subscapularis muscle, which is one of the four muscles that make up the rotator cuff. It originates on the subscapular fossa of the scapula and inserts on the lesser tubercle of the humerus. Contraction of the subscapularis muscle causes internal rotation of the shoulder joint.
The subscapularis tendon is located on the anterior (front) aspect of the shoulder joint. It is one of the four muscles that make up the rotator cuff in the shoulder, playing a role in internal rotation and stability of the shoulder joint.
Mild inflammation of the shoulder joint.