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Adductor Digiti Minimi
Region
Origin & Insertion
['Origin: Calcaneus and plantar aponeurosis', 'Insertion: Lateral base of proximal phalanx of 5th toe']
Synergistic Muscles
['Flexor digiti minimi brevis']
Joints
['5th MTP joint']
Primary Actions
['Abducts and flexes 5th toe']
Nerve & Spinal Segment
Lateral plantar nerve
Sacral plexus; S2–S3
Interesting
Helps balance foot on uneven ground. [Netter’s]
Reversal of Action
Support outer foot while toe stabilizes
Common Dysfunctions
Lateral foot instability, toe splay
How to Stretch
Stretch toe into adduction and extension.
Trigger Points
How to Strengthen
Toe splay and press drills.
Concentric Action
Adduct 5th toe
Applications:
Controls lateral toe splay, supports lateral arch
Eccentric Action
Control lateral toe movement
Isotonic Action
Toe squeeze toward midline
Related Conditions
['Tailor’s bunion', 'Plantar fasciitis']
Isometric Action
Hold toe aligned medially
Exercise Ideas
['Toe spread', 'Toe press against wall', 'Marble grasp with 5th toe']
Related Blogs
Images
Videos
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