The reverse crunch is a simple core exercise that targets those hard-to-hit lower abs — without straining your neck and back.

Considered the opposite of the standard crunch, a reverse crunch is an effective exercise that targets the lower abdominal muscles and obliques to help tone your core without placing excessive ...

No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...

Build bulletproof core muscles using these three exercises without weights, say the calisthenics instructors known as the Calisthenics Family. In their eyes, these are the three best calisthenics core ...