During midstance, the subtalar joint position is approximately which?

During midstance, the subtalar joint position is approximately which?

• A. 6° inversion
• B. 10° inversion
• C. 2° eversion
• D. 15° eversion

Answer: (B)

Subtalar joint position during midstance shows the hindfoot transitioning from pronation toward a more inverted, stable lever for propulsion. By this portion of stance, the foot is often about 10 degrees inverted, which helps create a firm, efficient first ray and lever for push-off. Early stance features pronation to absorb shock, and by terminal stance the foot moves toward deeper supination; midstance sits in that inverted, stable range. So about 10 degrees inversion best fits the midstance position.

Subtalar joint position during midstance shows the hindfoot transitioning from pronation toward a more inverted, stable lever for propulsion. By this portion of stance, the foot is often about 10 degrees inverted, which helps create a firm, efficient first ray and lever for push-off. Early stance features pronation to absorb shock, and by terminal stance the foot moves toward deeper supination; midstance sits in that inverted, stable range. So about 10 degrees inversion best fits the midstance position.