Shoulder abductor muscle stretch focuses on muscles of the side of the neck (levator scapula, upper trapezius), side of shoulder muscles (supraspinatus, middle deltoid), anterior shoulder muscles (pectoralis major and minor, anterior deltoid). Some of these muscles surround and support the rotator cuff. When these muscles are tight they can cause shoulder pain and numbness and tingling down the arm. Increase the stretch by gently bending your head to opposite shoulder.
Hold stretches until you feel a release, then hold until second release is felt. Should be at least 1 minute. Repeat 2-3 times per day. Perform on opposite side evenly (only if opposite side is as tight).