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Tibialis Posterior

The Tibialis Posterior is the deepest of all the calf muscles. It helps to support the arch of the foot.

Origin

• Interosseous membrane (between the tibia and fibula)
• Posterior surfaces of the tibia and fibula, adjacent to the interosseous membrane

Insertion

• Navicular tuberosity
• Cuneiforms
• Cuboid
• 2nd, 3rd, and 4th metatarsals

Actions

• Plantarflexion
• Inversion

Innervation

• Tibial nerve

Daily uses

• Pushing down car pedals

How can I stretch it?

• Soleus stretch
• Soleus stretch II
• Advanced soleus stretch

How can I strengthen it?

• Seated calf raise machine
• Calf raises with a bent knee