In MMT for Hip Internal Rotation w/ Anti-Gravity, where is the patient position?

In MMT for Hip Internal Rotation w/ Anti-Gravity, where is the patient position?

• A. Seated with knees flexed over the edge of the table; Stabilization: distal thigh on the medial side of the knee; Resistance: lower leg, just proximal to the lateral malleolus.
• B. Seated with knees extended over the edge.
• C. Supine with the leg extended.
• D. Side-lying with the tested leg on the table.

Answer: (A)

The key idea is to test hip internal rotators in a position where they have to move a limb against gravity while the pelvis is stabilized, so you can isolate the hip’s rotation without other movements interfering. Seated with the knees flexed over the edge of the table provides that setup: the thigh can rotate inward around the hip while gravity helps move the leg through the arc, and the knee position helps keep the limb aligned for a clean measurement. Stabilizing the distal thigh on the medial side of the knee prevents compensations such as pelvis tilt or unwanted hip movements, ensuring the force you measure comes from the hip internal rotators themselves rather than other muscles or motions. Resistance is applied to the lower leg just proximal to the lateral malleolus, in a direction that opposes external rotation. This makes the internal rotators work to overcome the resistance, giving a clear indication of their strength in this anti-gravity test. Other positions would alter the lever arm, invite compensations, or remove the anti-gravity challenge, making it harder to isolate and assess the hip internal rotators accurately.

The key idea is to test hip internal rotators in a position where they have to move a limb against gravity while the pelvis is stabilized, so you can isolate the hip’s rotation without other movements interfering. Seated with the knees flexed over the edge of the table provides that setup: the thigh can rotate inward around the hip while gravity helps move the leg through the arc, and the knee position helps keep the limb aligned for a clean measurement.

Stabilizing the distal thigh on the medial side of the knee prevents compensations such as pelvis tilt or unwanted hip movements, ensuring the force you measure comes from the hip internal rotators themselves rather than other muscles or motions.

Resistance is applied to the lower leg just proximal to the lateral malleolus, in a direction that opposes external rotation. This makes the internal rotators work to overcome the resistance, giving a clear indication of their strength in this anti-gravity test.

Other positions would alter the lever arm, invite compensations, or remove the anti-gravity challenge, making it harder to isolate and assess the hip internal rotators accurately.