The abductor hallucis muscle runs along the medial or interior border of each foot, covering the origins for most of the plantar nerves and vessels. It originates from the medial processes of the calcaneus tuberosity and the laciniate ligament and the intermuscular septum and Flexor digitorum brevis. The abductor hallucis fibers end with a tendon that inserts into the first phalanx of the big toe along with the flexor hallucis brevis medial tendon. This is part of the third layer of plantar muscles. The abductor hallucis abducts the big toe, where as the adductor hallucis muscle adducts the hallucis and big toe. Both muscles insert into the first phalanx of the big toe. This muscle also plays a vital role in posture and gait by supporting the foot's medial arch. The abductor hallucis muscle can become strained, resulting in pain along the foot's longitudinal arch and over pronation. Sports massage, electrotherapy, Ibuprofen, sports taping, cold therapy, and rest can all aid in resolving the injury.
Written and medically reviewed by the Healthline Editorial Team
In Depth: Abductor hallucis