But they shouldn’t be the only areas you pay attention to in your lower legs. If you’re ignoring a small stabilizing muscle called the posterior tibialis—which plays an important role in your running ...

“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 ...

which instead of your tibialis anterior is your tibialis posterior and it's behind your shin," the pro explained. "Now, this ...