Place shoulders under padded bars. Position toes and balls of feet on calf block with arches and heels extending off. Grasp handles or sides of padded bars. Stand erect by extending hips and knees.
Raise heels by extending ankles as high as possible. Lower heels by bending ankles until calves are stretched. Repeat.
Position sled 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. Also see exercise on alternative apparatus with back pad. See Calf Exercise Analyses.