Start
Stand holding a barbell balanced over your traps, or use a standing calf raise machine. With the balls of your feet on a raised surface, such as a step, and keeping your knee straight, lower your heels to stretch your calves.
Movement
Then press upward on the balls of your feet as high as you can.
By muscleandfitness.com
http://www.muscleandfitness.com/training/exercises/30
