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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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