With this study it will determined that the effect of critical shoulder angle which will be obtained from the MRI images of patients with Subacromial Impingement Syndrome on proprioception and disability level.

Critical shoulder angle (CSA) is defined as the intersection angle between two lines which are drawn from inferior border of glenoid cavity to superior border of glenoid cavity and from inferior border of glenoid cavity to inferolateral border of acromion. Higher CSA is accepted a predisposing factor for degenerative shoulder diseases. Increase in CSA means more shear forces reflects on shoulder joint which also causes overload on the RC tendon. Increase of degeneration in shoulder joint may cause decreased proprioception. As a result of degeneration, the level of disability will be increased. At the end of this study, the relationship among critical shoulder angle, proprioception and disability could be more clearly interpreted.

Inclusion Criteria:

• Being between 25-70 years of age,
• Diagnosis of SIS based on physical examination (at least three positive results from the Neer, Jobe, Hawkins/Kennedy Impingement, and/or Painful Arc tests),
• Being Level I-II Subacromial Impingement (radiologic examination (MRI)),
• having painful arc between 60° and 120° during active shoulder elevation
• Having shoulder pain for 3 months.

Exclusion Criteria:

• Having a shoulder operation before.
• Having Cardiovascular, Rheumatological or Neurological Disease
• Having Cervical Spine Disease
• Having Physiotherapy Treatment in last 6 months.
• Having a trauma, fracture, total Rotator Cuff rupture, Frozen Shoulder on shoulder joint

Paitents with Level I-II Subacromial Impingement Syndrome

We are planning not to share this data not to declare the data of our participants with any third group.