But crunches target just one of those muscle groups, so it's best to do your crunches as part of a larger, well-rounded core routine that works all of your abdominal muscles. Along with the abs ...

You’ve probably done thousands of crunches hoping to build a strong core, but this outdated exercise is actually one of the least effective ways to develop the deep abdominal strength that ...

To sculpt the six-pack you've always wanted, situps and crunches alone won’t cut it. It's time to upgrade your ab routine. Firdose Khan, head trainer at Nine Innovations, an elite athlete ...

Crunch your torso up off the ball and hold two to three seconds. Repeat for 8 to 12 reps. Related: Best Ab Exercises You Can Do With a Swiss Ball. Advertisement. About Our Ads; ...