Introduction Shoulder impingement syndrome (SIS) is the mechanical entrapment of the supraspinatus tendon underneath the acromial arch of scapula. The narrowing of the subacromial space (SAS) was ...

Introduction Rotator cuff tendinopathy is a significant source of musculoskeletal disability. Accompanying muscle changes may be important determinants of the prognosis. The aim of this study was to ...