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 ...

This exercise works the muscles in your side abs (external and internal obliques). PROGRESSION Do 2 to 3 sets of 8 to 15 reps. MOVEMENT *Lie on your left side with your feet stacked on top of each ...