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Uptodate Reference Title
Testing of shoulder external rotation strength
Testing of shoulder external rotation strength
External rotation of the shoulder is performed primarily by the infraspinatus. The maneuver shown is used to assess the strength of the infraspinatus tendon. The patient's elbow is flexed to 90 degrees and held against the patient's body by the examiner's hand. The patient actively rotates the arm externally against the resistance of the examiner's other hand, placed at the wrist.