What is the palm orientation for anti-gravity wrist extension testing?

What is the palm orientation for anti-gravity wrist extension testing?

• A. The Palmar Surface Rests on the Table
• B. The Dorsal Surface Rests on the Table
• C. The Palm Faces Toward the Ceiling
• D. The Palm Faces Sideways

Answer: (A)

Anti-gravity wrist extension is tested by setting up so gravity opposes the movement. When the palm rests on the table, the forearm is typically in pronation and gravity drags the hand downward, promoting flexion of the wrist. The extension you’re testing must then be produced against that gravitational pull, isolating the extensor muscles and demonstrating true anti-gravity strength. If the dorsal surface were on the table or the palm faced the ceiling, gravity wouldn’t oppose the extension movement in the same way, so the setup wouldn’t provide the correct anti-gravity demand.

Anti-gravity wrist extension is tested by setting up so gravity opposes the movement. When the palm rests on the table, the forearm is typically in pronation and gravity drags the hand downward, promoting flexion of the wrist. The extension you’re testing must then be produced against that gravitational pull, isolating the extensor muscles and demonstrating true anti-gravity strength. If the dorsal surface were on the table or the palm faced the ceiling, gravity wouldn’t oppose the extension movement in the same way, so the setup wouldn’t provide the correct anti-gravity demand.