Tibialis Anterior

The Tibialis anterior forms the main fleshy part of the outside of the shin.

Anatomy of the Tibialis Anterior

The tibialis anterior muscle is antagonist to the fibularis longus, gastrocnemius, soleus, plantaris and tibialis posterior. It is innervated is by the deep fibular nerve. It is supplied by the anterior tibial artery.

The tibialis anterior arises from the lateral condyle and upper half or two-thirds of the lateral surface of the body of the tibia.

The fibers of this fusiform muscle are relatively parallel to the plane on insertion, ending in a tendon, apparent on the anteriomedial dorsal aspect of the foot close to the ankle.

Functions of the Tibialis Anterior

The tibialis anterior muscle functions to stabilize the ankle as the foot hits the ground during the contact phase of walking and acts later to pull the foot clear of the ground during the swing phase.

The tibialis anterior muscle also functions to 'lock' the ankle, as in toe-kicking a ball, when held in an isometric contraction.

You will use the tibialis anterior muscle when walking - to lift the foot up and clear the ground.

Some of the best exercises to strengthen the tibialis anterior muscle include toe raises, the shin stretch and the standing shin stretch.

The common injury to the gastrocnemius muscle is the anterior compartment syndrome.

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