Reverse crunch. An isolation exercise. Target muscle: Rectus Abdominis. Synergistic muscles: Obliques and Iliopsoas (hip flexors). Learn why the reverse crunch is more effective than the standard crunch on my site.

Reverse crunch. An isolation exercise. Target muscle: Rectus Abdominis. Synergistic muscles: Obliques and Iliopsoas (hip flexors). Learn why the reverse crunch is more effective than the standard crunch on my site.

Original article and pictures take https://weighttraining.guide site