Tibialis Posterior - Muscle Physiology & Functional Anatomy

 

Tibialis Posterior Muscle

Anatomy

 

Origin:

  • Upper half of posterior shaft of tibia & upper half of fibula and adjacent interosseus membrane

Insertion

  •  Tuberosity of navicular bone, all tarsal bones (except talus) & plantar calcaneonavicular (spring) ligament



Major Artery:

  • Posterior tibial artery

 

Neural Innervation:

  • Tibial nerve (L4, L5)

 

Trigger Points: 

Tibialis Posterior Trigger Points

 

Physiology

 

Concentric Functions:

  • Plantarflexion & inversion (supination) of foot at ankle

Eccentric Functions:

  • Decelerates the dorsiflexion & eversion of the foot.

Isometric Function:

  • Stabilizes the (medial longitudinal) arch of the foot


Related Muscles


Antagonist:

Exercises:

 

 


More Images of the Tibialis Posterior Muscle

Tibialis Posterior Gray


More Information about the Tibialis Posterior Muscle

The tibialis posterior muscle is a the most central of all leg muscles.  It is located in the posterior compartment of the leg & is an important stabilizer.

 

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