Sit on machine with low back against padding and grasp handles to sides. Place feet high on platform and straighten knees. Position toes and balls of feet on lower portion of platform with arches and heels extending off.
Raise heels by extending ankles as high as possible. Lower heels by bending ankles until calves are stretched. Repeat.
When finished, place feet back on platform, engage dock lever (if it automatically disengaged), and lower seat to original position. Keep knees straight throughout exercise or bend knees slightly only during stretch. Quadriceps serve as synergists muscle if knees are bent slightly during stretch. See Calf Exercise Analyses.