Anchor the band to a high point just above your head. Grasp the ends of the band and step back a foot or two. Begin with your arms extended but not locked out and your hands at around head level. Keeping your arms extended, contract your back muscles to pull your hands down and toward you until your hands pass your thighs. Hold the contract for a count, then slowly return to the start position.
Attach the band to the top of a doorway or a high area placing both hands on the handles of the band, stand facing the door with your arms vertically above you, pull the handles down towards your waist keeping your arms straight and your body steady so as not to use momentum.