College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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During evaluation, what is the painful arc range associated with the glenohumeral joint?

170-180 degrees
60-120 degrees
0-30 degrees
30-50 degrees

The correct answer is: 60-120 degrees

The painful arc range associated with the glenohumeral joint is commonly recognized as 60-120 degrees of abduction. This phenomenon is often observed in patients who may have shoulder pathologies such as rotator cuff issues or subacromial impingement. During this arc, patients typically report pain due to the mechanics of the shoulder and the structures involved. When the arm is elevated between 60 and 120 degrees, the acromion may impinge upon the soft tissues of the shoulder, leading to discomfort or pain. This makes it a critical area for assessment in clinical evaluations. By identifying this painful arc, practitioners can better understand the functional limitations and potential underlying conditions affecting the patient's shoulder. This allows for more targeted interventions and treatment plans to alleviate pain and restore function.