Top Exercise for Rotator Cuff Activation & Joint Centration

The rotator cuff is critical to healthy shoulders, so if you've got problems like impingement, tendonitis or bursitis or just nagging shoulder pain, it's a muscle group you should work on. The rotator cuff is made up of 4 muscles: supraspinatus, infraspinatus, teres minor and subscapularis. The first 3 are responsible for external rotation and the subscapularis is the only internal rotator of the group. While the rotator cuff does indeed do internal and external rotation of the shoulder, it's more important function is dynamic stabilization of the shoulder joint aka joint centration.