Standing calf raises are executed with one or both feet. They are frequently done on a raised surface with the heel lower than the toes to allow a greater stretch
on the working muscles. The exercise is performed by raising the heel as far as possible. Weights or other methods of providing resistance are commonly used,
but the exercise is also effective with body weight alone.
Balance may become a difficulty with free-standing calf raises, especially with one-legged variations. Due to this, it is common to hang on to something
or lean the hand against a wall for stability. They are also performed using Smith machines or using machines specially designed for calf raises with
padded anchors for the weight that rest on the shoulders. -Wiki-
