According to Runner’s World Magazine, “the foot rolls inward more than the ideal fifteen percent, which is called over-pronation. This means the foot and ankle have problems stabilizing the body, and shock isn’t absorbed as efficiently. At the end of the gait cycle, the front of the foot pushes off the ground using mainly the big toe and second toe, which then must do all the work.” It’s fairly common and can cause serious problems for your entire leg and up to the hip if not corrected. Luckily, finding the right shoe for you can help correct the situation.