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Extensor hallucis brevis

Region

Origin & Insertion

['Origin: Dorsal surface of calcaneus', 'Insertion: Base of proximal phalanx of great toe']

Synergistic Muscles

['Extensor hallucis longus']

Joints

['1st MTP joint']

Primary Actions

['Extends great toe']

Nerve & Spinal Segment

Deep fibular (peroneal) nerve

Sacral plexus; L5–S1

Interesting

Shares muscle belly with EDB. [Moore’s]

Reversal of Action

Anchor toe to lift arch

Common Dysfunctions

Impaired big toe extension

How to Stretch

Flex big toe with ankle PF.

Trigger Points

How to Strengthen

Isolated toe extension drills.

Concentric Action

Extend big toe at MTP joint

Applications:

Trains big toe control; assists in toe-off and balance

Eccentric Action

Control big toe descent

Isotonic Action

Big toe lifts with light resistance

Related Conditions

['Hallux rigidus', 'Tendonitis']

Isometric Action

Hold toe extended

Exercise Ideas

['Toe raises', 'Band toe extension', 'Isometric toe hold']

Related Blogs

Images

Videos

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