Tibialis Posterior

Tibialis Posterior ankle muscles

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.
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