As a whole (all heads working together), the pectoralis major
assists adduction (lowering upper arm from side raise position to the midline of the body), medial rotation (rotating upper arm forward or inward to the midline of the body) and horizontal flexion (moving the upper arm from a side raise position to the front of the body).
Not exact matches
Teres Major internally rotates the humerus in neutral and will
assist in
adduction when the shoulder is abducted.
It
assists in stabilizing the head of the humerus in the glenoid cavity while the arm is elevated; the superior fibers aid in abduction, and the inferior fibers in
adduction.
The Copenhagen
adduction exercise is a dynamic, partner -
assisted exercise performed through a full range of motion (ROM).