

Resisted Isometric Testing of the Shoulder is part of the basic assessment. It can quickly tell you if the musculotendinous unit of any muscles of the shoulder girdle is possibly affected. Usually, it is performed after active and passive range of motion assessment.
Supine
Have your patient lie in supine position with the arm resting on the bench with slight abduction and the elbow flexed to 90°
Support the arm around the distal end of the humerus. Ask your patient to resist your movements.
You will also have to assess elbow flexion and extension, as the bicep and tricep muscles span over the elbow and shoulder joints.
Sitting
Also check out our post on active range of motion assessment as well as passive range of motion assessment of the shoulder.
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