In MMT for Hip External Rotation in Anti-Gravity, what is the test position?

In MMT for Hip External Rotation in Anti-Gravity, what is the test position?

• A. Seated with knees flexed over the edge of the table
• B. Supine with the knee flexed and rotated outward
• C. Standing with the hip in neutral rotation
• D. Prone with the knee extended

Answer: (A)

When testing hip external rotation in anti-gravity, the patient sits with the knees flexed and the legs hanging over the edge of the table. This upright position lets the hip rotate externally while gravity provides resistance, and it keeps the pelvis and thigh stabilized so the external rotators (like the piriformis and deep rotators) are what mainly drive the movement. The examiner can then stabilize the thigh and apply resistance to the distal leg to gauge strength without the movement being influenced by trunk or knee actions. Other positions either reduce isolation of the hip motions or introduce balance and lever-arm changes that make the test less specific to the external rotators.

When testing hip external rotation in anti-gravity, the patient sits with the knees flexed and the legs hanging over the edge of the table. This upright position lets the hip rotate externally while gravity provides resistance, and it keeps the pelvis and thigh stabilized so the external rotators (like the piriformis and deep rotators) are what mainly drive the movement. The examiner can then stabilize the thigh and apply resistance to the distal leg to gauge strength without the movement being influenced by trunk or knee actions. Other positions either reduce isolation of the hip motions or introduce balance and lever-arm changes that make the test less specific to the external rotators.