In MMT for hip abduction with gravity minimized, what is the patient position?

In MMT for hip abduction with gravity minimized, what is the patient position?

• A. Supine with the tested limb supported by the clinician in a slight amount of abduction and the non-tested limb resting in 25 degrees of abduction.
• B. Supine with the knees extended and the tested hip in slight external rotation.
• C. Side-lying with the tested limb resting on the table.
• D. Seated with the knee extended.

Answer: (B)

When testing hip abduction with gravity minimized, the goal is to reduce the influence of gravity so you can assess the muscle’s ability to generate force without gravitational assist or resistance. The best position does this by keeping the leg supported and aligning the hip in a way that the gluteus medius and other abductors are tested in their favorable line of pull. Placing the patient supine with the knees extended and the tested hip in slight external rotation achieves this: the thigh rests on the table (gravity isn’t pulling it into abduction), the knee is straight to avoid compensatory hip flexor activity, and the slight external rotation helps align the abductors so they can activate efficiently without awkward substitutions. The other positions introduce gravitational effects or unwanted substitutions. Having the limb supported by the tester in slight abduction still relies on the tester’s force and doesn’t truly minimize gravity. Side-lying places the limb in a position where gravity can assist or oppose the movement, making isolation harder. Seated with the knee extended changes body alignment and increases the involvement of other muscles and stabilizers, making the gravity-minimized goal less achievable.

When testing hip abduction with gravity minimized, the goal is to reduce the influence of gravity so you can assess the muscle’s ability to generate force without gravitational assist or resistance. The best position does this by keeping the leg supported and aligning the hip in a way that the gluteus medius and other abductors are tested in their favorable line of pull. Placing the patient supine with the knees extended and the tested hip in slight external rotation achieves this: the thigh rests on the table (gravity isn’t pulling it into abduction), the knee is straight to avoid compensatory hip flexor activity, and the slight external rotation helps align the abductors so they can activate efficiently without awkward substitutions.

The other positions introduce gravitational effects or unwanted substitutions. Having the limb supported by the tester in slight abduction still relies on the tester’s force and doesn’t truly minimize gravity. Side-lying places the limb in a position where gravity can assist or oppose the movement, making isolation harder. Seated with the knee extended changes body alignment and increases the involvement of other muscles and stabilizers, making the gravity-minimized goal less achievable.