During gravity-minimized scapular adduction/downward rotation MMT, what stabilizes the trunk?

During gravity-minimized scapular adduction/downward rotation MMT, what stabilizes the trunk?

• A. Stabilization: The clinician stabilizes the anterior/posterior trunk.
• B. Stabilization: The clinician stabilizes the anterior/posterior trunk to prevent flexion or rotation.
• C. Stabilization: Weight of the trunk on the table.
• D. Stabilization: Subject compliance.

Answer: (B)

In gravity-minimized MMT for scapular adduction with downward rotation, stabilizing the trunk prevents unwanted movement that could mask or compensate for the scapular muscles being tested. The key is to keep the torso from flexing or rotating, so the examiner provides stabilization across the anterior/posterior dimension to hold the trunk steady. This isolation lets the rhomboids and middle trapezius be tested without the influence of trunk motion. Rationale: Without this stabilization, the patient could tilt, flex, or rotate the trunk, which would change the position and effort of the scapula and make it hard to assess the true strength of the scapular depressors/adductors. Merely stabilizing the trunk in a general sense or relying on the weight of the trunk would not specifically prevent those compensatory movements. The patient’s own effort (compliance) does not provide the necessary control of the trunk.

In gravity-minimized MMT for scapular adduction with downward rotation, stabilizing the trunk prevents unwanted movement that could mask or compensate for the scapular muscles being tested. The key is to keep the torso from flexing or rotating, so the examiner provides stabilization across the anterior/posterior dimension to hold the trunk steady. This isolation lets the rhomboids and middle trapezius be tested without the influence of trunk motion.

Rationale: Without this stabilization, the patient could tilt, flex, or rotate the trunk, which would change the position and effort of the scapula and make it hard to assess the true strength of the scapular depressors/adductors. Merely stabilizing the trunk in a general sense or relying on the weight of the trunk would not specifically prevent those compensatory movements. The patient’s own effort (compliance) does not provide the necessary control of the trunk.