The reverse ab roll-out is an exercise targeting the abdominals. It's a twist on the ab wheel roll-out, and is similar to a body saw exercise, only performed on a foam roller. Instead of your arms moving and your lower body remaining stationary, your lower body moves and your arms remain stationary. Beginners may need to use a limited range of motion.
Hits every part of the core, including the rectus abdominis or "six-pack" muscles and the deep core muscles
Different stimulus than more traditional moves such as the crunch and reverse crunch