From an earlier Charles Poliquin Question of Strength Article:
“The reverse hyper machine is also excellent for improving posture and correcting abnormal pelvic tilt, which can immediately give the illusion of a flattened abdomen wall. One of the consequences of having weak erector spinae muscles is the development of a posture in which the upper back is rounded, causing the shoulders to droop forward and the chest to appear sunken. In order to maintain the center of gravity for this type of incorrect posture, the pelvis begins to thrust forward, ultimately causing a distended lower abdomen. This condition is often referred to as a kyphosis-lordosis posture.”
The latest posture articles by Ian King and Mike Roberts didn’t include this exercise. Any reasons why?