بررسي حسن عمقي بيماران مبتلا به سندرم ايم پينجمنت شانه

Evaluation of Shoulder Proprioception in Patients with Shoulder Impingement Syndrome (SIS)

Background: Proprioception is defined as the ability to detect the position of body parts and the onset and direction of joint movements. Proprioceptors are mechanoreceptors located in joint capsules, tendo ligaments, muscles and skin. Patients with unstable and dislocated shoulders have been shown to possess significantly poore proprioceptive acuity. The aim of this study was to evaluate shoulder proprioception deficits in patients with shoulder impingement syndrome (SIS). Methods: 14 patients with SIS (age=44.07) and 14 healthy subjects (age=42.57) participated in the study The patients were positioned seated. An electronic inclinometer was attached to distal end of forearm. Th limb was rotated to the end of the external rotation. %50 of external rotation range of motion was calculated as target angle. Then subjects were asked to actively reposition the target angle with eyes closed. The mean deviation from the target position was recorded as absolute error. Results: The absolute errors of right and left involved patients and the right and left sides of healthy subjects were 4176, 6138 and 2149, 2183 respectively. The differences of absolute errors of right and left between patients and healthy subjects were significant. Conclusion: Our findings reveal that shoulderʹs sense of joint reposition decreases in SIS patients. These proprioceptive deficits may arise from disruption or loss of muscular and joint proprioceptive inputs into the central nervous system.