Your patient demonstrates decreased open chain pronation at the subtalar joint. Which of the following would be limited?
a. Eversion of the calcaneus on the talus
b. Adduction of the calcaneus on the talus
c. Plantarflexion of the calcaneus on the talus
d. Both A and C are correct.
ANS: A
During open kinetic chain eversion of the subtalar joint, the calcaneus everts on the talus, and there is dorsiflexion of the talocrural joint. The opposite is true in closed kinetic chain activity.
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