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: Plantar flexion & Inversion.
- Innervation: Tibial nerve.
- Daily uses: Pushing down car pedals
- Example strengthening exercises: Tibialis posterior exercise with band.