Simple heel raises to help strengthen your feet and the muscles around your ankles. Place the balls of your feet with toes pointing straight on a wood block, step or large book. Allow your heels to slowly drop down and maintain this position for five seconds. Raise your heels as high as you can and maintain this position for three seconds. Repeat, only with the toes pointed inward toward each other, then with the toes pointed outward and away from each other.