New York Post may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. With the new year on the horizon, it’s inevitable ...

This exercise only targets the abdominal muscles, so it’s not a functional core workout. Crunches can be hard on your back and neck, and may not be safe for everyone. Share on Pinterest The crunch is ...

Add Yahoo as a preferred source to see more of our stories on Google. Unlike regular crunches, which require lifting the upper body off the ground, reverse crunches involve lifting the hips and legs ...