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

In which shoulder position is the supraspinatus tendon optimally exposed for cross fiber frictions?

1. Flexion and abduction

2. Extension, adduction, internal rotation

3. Horizontal adduction and external rotation

4. Neutral position

The correct answer is: Extension, adduction, internal rotation

The optimal exposure of the supraspinatus tendon for cross fiber frictions occurs during the position of extension, adduction, and internal rotation of the shoulder. In this position, the supraspinatus tendon, which is a part of the rotator cuff, becomes more accessible as the surrounding soft tissues are shifted in a manner that allows for better palpation and treatment. When the shoulder is extended and adducted, the positioning opens up the area where the supraspinatus tendon lies, allowing the therapist to more effectively apply techniques such as cross-fiber friction. This technique is useful in addressing conditions like tendonitis and improving the healing of the tendon by increasing blood flow and breaking down scar tissue. Positions like flexion and abduction, horizontal adduction and external rotation, or the neutral position do not provide the same level of access or exposure to the supraspinatus tendon, making them less effective for this specific treatment purpose.