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Tibialis Anterior

Region

Origin & Insertion

['Origin: Lateral condyle and upper tibia', 'Insertion: Medial cuneiform and base of 1st metatarsal']

Synergistic Muscles

['EHL', 'Peroneus tertius']

Joints

['Ankle']

Primary Actions

['Dorsiflexion', 'Inversion']

Nerve & Spinal Segment

Deep fibular (peroneal) nerve

Sacral plexus; L4–L5

Interesting

Primary dorsiflexor. [Moore’s]

Reversal of Action

Pull tibia over fixed dorsiflexed foot

Common Dysfunctions

Foot drop, gait slap, shin splints

How to Stretch

PF with eversion stretch.

Trigger Points

How to Strengthen

DF with resistance.

Concentric Action

Dorsiflex and invert foot

Applications:

Primary dorsiflexor; targeted in foot drop rehab

Eccentric Action

Control foot lowering post-heel strike

Isotonic Action

Toe taps or resisted DF

Related Conditions

['Anterior compartment syndrome', 'Flat foot']

Isometric Action

Hold DF position during standing

Exercise Ideas

['Toe raises', 'Band DF', 'Heel walks']

Spry Juncture, LLC

How to Evolve Gracefully