HOW: Start by placing both hands on a wall for support. Lift your heels off the ground on both feet and then bend both of your knees. Holding your heels up, shift your body weight onto one foot. Alternate shifting your weight back and forth while using the wall for support.
FEEL: You should feel the muscles in your lower leg working.
COMPENSATION: Don’t straighten your knees, keep them bent the entire time. Lift your whole body weight with the heel raise, don’t roll forward onto your toes.