What is the weight distribution through the various joints from the ankle through the metatarsal heads in unilateral stance?
What will be an ideal response?
ANS:
As the body weight comes down the tibia, all the weight passes from the tibia to the body of the talus. From there, half of the weight moves posteriorly to the calcaneus and half moves anteriorly to the forefoot. Of the weight passing to the forefoot, two thirds pass through the talonavicular joint and one third through the calcaneocuboid joint. As the weight arrives at the heads of the metatarsals, the first metatarsal bears twice as much weight as the other four toes (which bear equivalent amounts to each other).
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