In anti-gravity MMT for ankle inversion, what is the test position?

In anti-gravity MMT for ankle inversion, what is the test position?

• A. Test position: supine with test foot and ankle over the edge. Stabilization: clinician stabilizes lower limb on table. Resistance: down at medial border of the forefoot.
• B. Test position: side lying with test foot and ankle over the edge. Stabilization: clinician stabilizes lower limb on table. Resistance: down at medial border of the forefoot.
• C. Test position: prone with ankle dorsiflexed. Stabilization: clinician at the hip. Resistance: at the lateral border of the forefoot.
• D. Test position: seated with leg over the table. Stabilization: therapist holds the leg. Resistance: at the medial forefoot.

Answer: (B)

Testing ankle inversion in an anti-gravity setup uses a position that lets the invertor muscles work against the weight of the leg. Side-lying with the test leg over the edge of the table does just that: it stabilizes the proximal segment so the movement happens at the ankle, and gravity provides a consistent load as the patient tries to turn the sole inward. The clinician stabilizes the lower leg to prevent hip/knee substitutions, and applies resistance along the medial forefoot to oppose the inversion movement. This setup isolates the inversion action and gives a clear, gravity-driven challenge to the muscles responsible for inverting the foot. Other positions either misalign the resistance vector, reduce isolation of the ankle joint, or make stabilizing the proximal segments harder, which is why they’re not as appropriate for this anti-gravity test.

Testing ankle inversion in an anti-gravity setup uses a position that lets the invertor muscles work against the weight of the leg. Side-lying with the test leg over the edge of the table does just that: it stabilizes the proximal segment so the movement happens at the ankle, and gravity provides a consistent load as the patient tries to turn the sole inward. The clinician stabilizes the lower leg to prevent hip/knee substitutions, and applies resistance along the medial forefoot to oppose the inversion movement. This setup isolates the inversion action and gives a clear, gravity-driven challenge to the muscles responsible for inverting the foot. Other positions either misalign the resistance vector, reduce isolation of the ankle joint, or make stabilizing the proximal segments harder, which is why they’re not as appropriate for this anti-gravity test.