Exercise Advice: This exercise is the same as the One Legged Cable Kickbacks that you do for your butt. This exercise is performed using a pulley machine. Attach a small hand attachment to the lower section of a pully machine. Place one foot through the handle opening of the small hand attachment so that it becomes wrapped around your ankle. Keeping your leg straight, smoothly kick your heel backward about one foot. Hold your leg at the top of this movement for a one-count and repeat with the opposite leg.