The reverse hyperextension is a great movement for the posterior chain. To really heighten the effect, resistance bands can be used to provide a greater overload where you want it (i.e., with the hips extended) and less where you don’t want it (i.e., with the hips flexed). The beauty of using elastic resistance rather than just weight plates is that you can really accelerate during the concentric action while maintaining constant contact with the ankle pad and without fear of sending the lever arm into orbit! The bands will then return the favor by trying to “fling” you back to the start, which requires some braking action on your part. Thus, you get compensatory acceleration and compensatory deceleration each rep. Cool!