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

The position that does not benefit the supraspinatus tendon during treatment is flexion and external rotation. The supraspinatus, one of the rotator cuff muscles, primarily functions to initiate abduction of the arm and stabilize the shoulder joint.

When the arm is positioned in flexion and external rotation, the supraspinatus is placed in a more lengthened state which can increase the tension on the tendon. This positioning is less favorable as it can stress the tendon, especially if there is any inflammation or injury present. Treatment positions that involve maintaining or promoting a more neutral or stable position, such as extension, adduction, or internal rotation, typically provide better rest and rehabilitation for the supraspinatus tendon.

In contrast, the other positions mentioned either maintain a neutral state or do not place undue stress on the tendon, leading to a more supportive environment for recovery and function.