Action 1: The subject is instructed to touch the opposite shoulder with his/her hand. This motion checks Glenohumeral adduction, internal rotation, horizontal adduction and scapular protraction.
Action 2: The subject is instructed to place his/her arm overhead and reach behind the neck to touch his/her upper back. This motion checks Glenohumeral abduction, external rotation and scapular upward rotation and elevation.
Action 3: The subject puts his/her hand on the lower back and reaches upward as far as possible. This motion checks glenohumeral adduction, internal rotation and scapular retraction with downward rotation