I dorsiflex & invert the foot – Who am I?
A Muscle A Day – anterior leg
Who am I?
I am one of 4 muscles of the anterior compartment of the lower leg.
I am responsible for dorsiflexing and inverting the foot at the ankle joint.
Who am I?
I am Tibialis Anterior.
This week we’re looking at the muscles of the anterior compartment of the thigh.
Summary
Theme: Anterior compartment of the lower leg
Origin: Lateral surface of the tibia and interosseous membrane
Insertion: Medial cuneiform and base of the first metatarsal
Nerve: Deep fibular nerve L4, 5
Action: Dorsiflex foot at ankle joint. Invert the foot. Dynamic support of the medial arch of the foot.
Day-to-day life
Function: Walking / running. helps prevent the foot from slapping onto the ground after heel strike.
Common cause of injury: excessive jumping onto hard surfaces
Stretch: Shin stretch