Abductor Hallucis Definition
The Abductor hallucis is a hallux muscle that leads away the big toe from all other toes. It belongs to the first layer of the plantar group of Foot muscle.
The name of the abductor hallucis muscle comes from the Greek term ‘halmox’, which means ‘to spring’ or ‘to leap’, while the word Abductor arises from the Latin terms ab that means ‘away from’ and ducere that means ‘to draw’ or ‘to lead’. The muscle is known as Musculus abductor hallucis in Latin and as Muscle abducteur de l'hallux in French.
Abductor Hallucis Location
The muscle lies along the inner side of the foot and it passes onto the side of the big toe, running from the heel bone.
Abductor Hallucis Origin
It arises from:
Abductor Hallucis Insertion
The muscle has its point of insertion at the medial side of the big toe’s proximal phalanx base and medial sesamoid bone.
Abductor Hallucis Function
It is responsible for the abduction of the big toe, and plays a vital role in making the longitudinal plantar arch deepened while pushing the ground off with the toes – as happens while walking. It plays a major role in gait and posture by supporting the medial arch of the foot.
Abductor Hallucis Innervation
The muscle arises in the Medial plantar nerve S1 and S2. The abductor hallucis muscle belly receives blood supply from:
The first plantar metatarsal artery supplies blood to the abductor hallucis tendon.
Abductor Hallucis Pain
This muscle runs horizontally across the upper part of the foot and makes a V-shape with the center at the area of the big toe. It runs longitudinally on the foot’s media inside, along the arch. Painful sensations in any of these two spots can feel similar to plantar fasciitis pain or plantar fasciitis pain. However, runners can easily spot a sore and tight abductor hallucis from an issue in the plantar given that the muscle is located on the inner side of the arch and not on the bottom of the foot.
Abductor hallucis injury involving any of these two muscles might occur from insufficient arch support in the shoes, especially in case you suffer from bunions. The issue can be treated by a two-pronged approach that can fix both muscles, including:
Injuries involving the Abductor hallucis longus and the Abductor hallucis brevis muscles can be treated in a similar fashion.
Abductor Hallucis Strain
Strain in this muscle can lead to pain along the longitudinal arch of the foot, as well as over-pronation – which is a position where the foot rolls in too far inwards. Abductor hallucis abducts, bends or moves the big toe sideways and supports the inner arch of the foot.
Abductor hallucis strain symptoms include pain along the inner feet arch. Patients feel more tenderness and pain when they press the foot sole along the entire length of the abductor hallucis. Many athletes suffering from this type of strain have a tendency to over-pronate, and their feet tends to roll in a lot during the gait cycle.
Abductor hallucis strain treatment generally includes:
All these methods can help fix the injury. A full rehabilitation program consisting of strengthening and stretching exercises is important once pain subsides a little. It is also essential to stretch the calf muscles and the plantar fascia that is located beneath the foot.
Abductor Hallucis Pictures
Look at these Abductor Hallucis images and diagrams, and find out how the muscle looks to the eye.
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