In anti-Gravity MMT for Shoulder Abduction, what is the test position?

In anti-Gravity MMT for Shoulder Abduction, what is the test position?

• A. Supine with tested limb supported on table
• B. Standing with arm at side
• C. Seated with shoulder abducted to 90, palm down
• D. Prone with arm overhead

Answer: (C)

Testing shoulder abduction against gravity requires placing the arm in a position where the movement must lift the arm upward against the downward pull of gravity. The standard setup is seated (or standing) with the arm abducted to about 90 degrees, the elbow extended, and the forearm pronated (palm facing down). This places the limb in the vertical plane so gravity provides the resistance, allowing you to apply exam resistance at the distal forearm to gauge strength. Positions that keep the limb on a supporting surface or keep it at the side don’t engage the abductors against gravity in the same way, and a prone position with the arm overhead shifts mechanics away from a straightforward anti-gravity abduction test. Thus, the described seated position with 90-degree abduction and a palm-down forearm best accomplishes the anti-gravity shoulder abduction test.

Testing shoulder abduction against gravity requires placing the arm in a position where the movement must lift the arm upward against the downward pull of gravity. The standard setup is seated (or standing) with the arm abducted to about 90 degrees, the elbow extended, and the forearm pronated (palm facing down). This places the limb in the vertical plane so gravity provides the resistance, allowing you to apply exam resistance at the distal forearm to gauge strength.

Positions that keep the limb on a supporting surface or keep it at the side don’t engage the abductors against gravity in the same way, and a prone position with the arm overhead shifts mechanics away from a straightforward anti-gravity abduction test. Thus, the described seated position with 90-degree abduction and a palm-down forearm best accomplishes the anti-gravity shoulder abduction test.