Indications:

External Rotator Muscle test is a shoulder examination used to determine the strength of the infraspinatus and teres minor.

Procedure:

  1. Patient seated or supine, elbow flexed 90°, patient externally rotates 10° examiner then applies internal rotatory force to resists patient motion.
External Rotator Muscle test for shoulder

Patient seated or supine, elbow flexed 90°, patient externally rotates 10° examiner then applies internal rotatory force to resists patient motion.

Interpretation:

Positive Weakness or pain → Strain or muscle tear of infraspinatus & or teres minor muscle.

Clinical notes:

Muscles should be checked in at least two different positions of shoulder abduction.