What is the action of the tibialis anterior muscle?

The tibialis anterior muscle is primarily responsible for the dorsiflexion of the ankle. This means that it helps to lift the foot upwards towards the shin. When engaged, the tibialis anterior facilitates movements such as walking on the heels or lifting the toes, which are critical for proper gait mechanics.

Dorsiflexion is essential for activities like walking and running, as it allows the foot to clear the ground as the leg moves forward. This muscle also contributes to supporting the arch of the foot. Understanding the action of the tibialis anterior and its role in dorsiflexion is crucial for recognizing its importance in lower limb biomechanics and overall movement efficiency.