Position bar on upper chest height and place calf block under bar. Position back of shoulders under bar and grasp bar to sides. Position toes and balls of feet on calf block with arches and heels extending off. Disengage bar by rotating bar back. Stand erect by extending knees and hips.
Raise heels by extending ankles as high as possible. Lower heels by bending ankles until calves are stretched. Repeat.
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 alternative form: Standing Calf Pop-ups involving Quadriceps. See Calf Exercise Analyses.