Set-up: Set up in a leg press machine, place your legs on the platform directly in front of you using a shoulder width stance. Press the weight out away from your body but do not fully straighten the legs. Carefully place your toes and balls of your feet on the bottom portion of the platform with the heels extending off.
Lift: Push the plate with the balls of your feet, extending your ankles as far as possible while flexing your calves. In complete control, let the platform descend until the heels are below parallel to your toes.