"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If you've completed a core workout—or 100 of them—over the years, you likely know what crunches are ...

Start on your back with your arms straight above you, and your knees in a tabletop position. Engage your abs, then raise your ...

If you're just starting a fitness routine and looking for a beginner abs workout, you may think sit-ups and crunches are necessary evils. But good news–you can skip 'em and still see results. This ...

Whether you’re just getting into working out or you’re looking to get back to basics, having a few easy abs workouts in your back pocket to whip out anytime, anywhere is a must. And just because ...

Sit-ups and crunches both target your core muscles, but work differently. You can use both exercises to build strength, endurance, and control.

While many workout regimens flame out as quickly as it took them to start trending, others stand the test of time. Exercises like tai chi, running, swimming, hiking and yoga, for instance, have been ...