Is it a boon or bust? No exercise is perfect and the gain versus risk ratio has to be measured. Here are commentaries from two experts.

“A Reverse Hyper will build your glutes, hamstrings, and lower back like nothing else. There are many men who merely increase the weight on this exercise near a meet. Billy Masters, who squats 900 pounds, does just that. The Reverse Hyper is very therapeutic for the low back because it rotates the sacrum on each rep.”

–Louie Simmons

“Our spines aren’t designed to buttress shear that comes from the lower body moving backward on the upper body (one more reason to avoid the “hyper” part of reverse hyperextensions).”

–Dr. Stuart McGill