Start 1. Stand in front of box at 45 degree angle with feet straight and shoulder-width apart. 2. Lift chest and tuck chin.
Movement 1. Squeeze butt muscles. 2. Place one foot on top of box then forcefully push off foot into air, turning body 90 degree in opposite direction. 3. Land softly on opposite foot on box and forcefully push off foot into air, rotating back to start position. 4. Repeat quickly with control, alternating legs.