Importance of Scapular stabilization exercises in shoulder injury
To begin. It is essential to understand a little biomechanics of shoulder joint. Shoulder joint is a complex joint consists of 3 joints made up of 3 bones: Humerus (Arm bone), Clavicle (collar bone) and Scapula (shoulder blade). [ we will be mainly focusing on the shoulder blade]. All these joints have to work in syc with one another to do any movement in the shoulder. Thus, raising the arm above head, giving a full range of 180 degrees, involves synchronous movement of arm bone and shoulder blade and is termed as scapulothoracic rhythm. Commonly accepted ratio is 2:1 where, 2 degree occurs at Arm bone and 1 degree occurs at shoulder blade. Collar bone(clavicle) also rotates to some degrees to provide flawless movement in shoulder. But lets not go in depth and just concentrate on shoulder blade for now!! Movements that occurs in shoulder blade (above figure): 1. Elevation/Depression. 2. Abduction/adduction. 3. Upward rotation/downward rotation.