Connect a resistance band to the workout bar and attach the other end to a D-ring on an ankle strap. Do the same for a pair of resistance bands. Position the workout bar on back of shoulders and grab the bar to sides.
Keeping back straight, bend hips to lower torso forward until parallel to floor. Raise torso returning to original position and repeat.
Throughout lift keep back and knees straight. Do not lower weight beyond mild stretch through hamstrings. Full range of motion will vary from person to person depending on flexibility.