The movements at the ankle

It is important to note that the inversion and eversion movements of the foot do not occur at the ankle joint except in full plantarflexion. These occur at the subtalar and midtarsal joints (see below). Only dorsiflexion (extension) and plantarflexion (flexion) occur at the ankle. The principal muscles are:

• Dorsiflexion: tibialis anterior and to a lesser extent extensor hallucis longus and extensor digitorum longus.

• Plantarflexion: gastrocnemius and soleus and to a lesser extent tibialis posterior, flexor hallucis longus and flexor digitorum longus.

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