The Bottom Line: Ditch the sit-ups. These bodyweight exercises are smarter, tougher, and deliver more bang for your buck.

So no, doing core exercises in the gym won’t guarantee you visible abs. What these moves do assure you, however, is a better ...

This 12-move abs workout is done using a kettlebell, which means that in just 12 minutes you can truly challenge your entire ...

Stand with your feet together and arms at your sides. Jump your feet apart while raising your arms overhead. Return to the starting position and repeat the movement continuously for 40 seconds.

It may also release tension in your lower ... this exercise: Come onto all fours and straighten your legs, lift your heels, and raise your hips. Straighten your back and engage your abdominal ...