Shoulder impingement syndrome is the most frequent cause of pain and overhead reach limitation in the shoul- der area. It represents the third most frequent disease of the musculoskeletal system1). Normal shoulder functions are dependent on the scapular humeral rhythm and rotator cuff muscles control2). Disruption of the scapular humeral rhythm synergistic relationship may occur because imbal- ance in the shoulder muscles3, 4). The subscapularis muscle is the most powerful of the rotator cuff muscles. It has an important role in shoulder movement and stability5, 6). Re- striction of shoulder movement in most cases results from muscle spasm, which also restricts the fow of blood, lymph, and nerve signals in the area4–6).
Many treatment methods are practiced clinically of man- agement of shoulder impingement syndrome. Some studies have shown that manual therapy and soft tissue mobilization may promote restoration of joint functions after an injury through elongation of shortened structures, which helps the restoration of range of motion6, 7). Manual therapy may pro- mote proper restoration of joint function after an injury