Position lower back and hips under upper pad. Place forearms on supports. Position toes and balls of feet on calf block with arches and heels extending off. Straighten knees.
Raise heels by extending ankles as high as possible. Lower heels by bending ankles until calves are stretched. Repeat.
Position upper pad just below lowest range of motion. 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.