Stand with the balls of your feet on a step and your heels gently supported so your ankles are in a neutral position. Press your toes upward against the step edge or a firm resistance (such as a band or your shoe) without letting your foot move — holding the contraction for several seconds. This isometric action targets the tibialis anterior and supporting muscles, improving ankle stability, balance between front and back of the lower leg, and control through the calf–ankle complex.