WHAT IS IT?
Tibialis posterior, the most important stabilizing muscle in your lower leg, is located behind the tibia (shin bone). The tendon of tibialis posterior runs behind the medial malleolus (inside ankle bone) and into the arch of the foot. This muscle is responsible for controlling foot pronation, supporting the arch of the foot, and generating forward propulsion, along with the peroneals and calf muscles.
The pain is located on the inside of the ankle or arch of the foot and gradually worsens with repetitive stress.
Since tibialis posterior shares a role in controlling foot pronation along with soleus (one of the calf muscles), strengthening the tibialis posterior muscle and soleus are critical for treatment. The short-term use of orthoses may be effective by helping to supporting the arch and relieving some stress placed on the tendon.
Check out the Calf Raise Protocol and Ankle Inversion videos
Health content provided by Dr. Reed Ferber and the Running Injury Clinic