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Extensor Digitorum Longus

Region

Origin & Insertion

['Origin: Lateral condyle of tibia and anterior fibula', 'Insertion: Middle and distal phalanges of toes 2–5']

Synergistic Muscles

['EHL', 'Peroneus tertius']

Joints

['Ankle', 'Toes 2–5']

Primary Actions

['Extends toes 2–5', 'Dorsiflexion', 'Eversion']

Nerve & Spinal Segment

Deep fibular (peroneal) nerve

Sacral plexus; L5–S1

Interesting

Important for toe clearance during gait. [Moore's]

Reversal of Action

Stabilize tibia using toe dorsiflexors

Common Dysfunctions

Clawed toes, foot drop, dorsum foot pain

How to Stretch

Toe and ankle flexion combo.

Trigger Points

How to Strengthen

Toe extensions with resistance.

Concentric Action

Extend lateral toes and DF

Applications:

Used in re-establishing toe lift and walking coordination

Eccentric Action

Control return from toe extension

Isotonic Action

Toe lifts with band

Related Conditions

['Drop foot', 'Shin splints']

Isometric Action

Hold toes lifted

Exercise Ideas

['Toe extension drills', 'DF with toe lift', 'Heel walking']

Related Blogs

Images

Videos

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