Technique:

• Stand upright
• Extend one arm across your body
• Raise your other arm so that it is parallel to the ground
• Pull your elbow towards your opposite shoulder

Primary muscles: Trapezius. Rhomboids. Latissimus dorsi. Posterior deltoid.
Secondary muscles: Infraspinatus. Teres minor.

Injury where stretch may be useful: Dislocation. Subluxation. Acromioclavicular separation. Sternoclavicular separation. Impingement syndrome. Rotator cuff tendonitis. Shoulder bursitis. Frozen shoulder (adhesive capsulitis).

Note: Keep your arm straight and parallel to the ground during this stretch.