In MMT for Hip External Rotation in Anti-Gravity, where is stabilization applied?

In MMT for Hip External Rotation in Anti-Gravity, where is stabilization applied?

• A. Pelvis stabilization
• B. Distal thigh on the lateral side of the knee
• C. Proximal leg near the hip
• D. Contralateral thigh stabilization

Answer: (B)

Isolating movement to the hip during hip external rotation against gravity requires fixing the distal part of the limb so no substitutions come from the knee or the pelvis. Stabilizing the distal thigh on the lateral side of the knee does exactly that: it anchors the femur just above the knee, preventing the knee or lower leg from rotating or helping the movement, while letting the hip rotate freely. If you tried stabilizing the pelvis or the proximal thigh near the hip, you risk altering the force axis or restricting hip motion, which can change how the test feels and what it isolates. Stabilizing the contralateral thigh could invite trunk or pelvic compensation. So, placing stabilization on the distal thigh near the knee best preserves true hip external rotation strength in this anti-gravity setup.

Isolating movement to the hip during hip external rotation against gravity requires fixing the distal part of the limb so no substitutions come from the knee or the pelvis. Stabilizing the distal thigh on the lateral side of the knee does exactly that: it anchors the femur just above the knee, preventing the knee or lower leg from rotating or helping the movement, while letting the hip rotate freely. If you tried stabilizing the pelvis or the proximal thigh near the hip, you risk altering the force axis or restricting hip motion, which can change how the test feels and what it isolates. Stabilizing the contralateral thigh could invite trunk or pelvic compensation. So, placing stabilization on the distal thigh near the knee best preserves true hip external rotation strength in this anti-gravity setup.