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.
Example strengthening exercises
- Calf raises (bent knee).
- Seated calf raise machine.
Example stretches
- Soleus stretch.
- Soleus stretch 2.
- Advanced soleus stretch.
Related injuries
- Tibialis posterior syndrome.
Related muscles
- Gastrocnemius Soleus.
