Is weakness through your posterior tibialis the true culprit for your plantar fasciitis pain?🤔 The posterior tibialis muscle originates on your lower leg and wraps under the arch of your foot. One of its main roles is to eccentrically lengthen to control pronation as we walk, run, jump which helps to support the arch and decrease the load placed on your plantar fascia during these types of activities. 👉With weakness in these muscles, we place increased load through the plantar fascia of the bo