We know how to protect ourselves from bigger injuries — wearing a helmet while biking, holding the railing while walking down the stairs, choosing comfortable, supportive shoes. But sometimes, it’s ...

“The posterior tibialis is a muscle that originates on the back, or posterior, part of the tibia and fibula (your lower leg bones), up close to your knee,” explains Cathlin Fitzgerald, D.P.T, C.S.C.S.