Medial Trapezius Strength Test
With the client prone, the therapist brings the affected shoulder to 90 degrees abduction.
The client then external rotates their arm.
The client tries to hold this position, if successful the client attempts to extend their arm as the therapist resists.
The client can’t hold the position against gravity or can’t resist the therapists pressure
Upper Trapezius Strength Test
With the client supine, the client abducts their arm to 90 degrees, flexes their elbow and rests the back of their hand on the table.
The client then extends their neck, while the therapist stabilizes the side being tested. The client then rotates their head away from the side being tested.
The client holds this position, if they can keep this position against gravity, the therapist applies pressure to the posterior head.
The client is unable to hold the position or resist the therapists pressure.