What is the Extensor Hallucis Brevis?
The Extensor Hallucis Brevis is a small muscle on the top of your foot, closer to the outer side, that helps lift your big toe. It starts on the upper surface of the heel bone area (the front part of the calcaneus) and runs forward to attach near the base of the big toe. When it contracts, it assists in extending the big toe, meaning it pulls the toe upward toward the ceiling. It also helps stabilize the front of the foot during walking, running, jumping, and any movement where you push off the ground.