Stronger abs without a single crunch? Yes, please. Here's how to do a plank the right—and why they're so good for you. Fact checked by Emily Peterson Meet the sit-up's even more effective sibling: the ...

YOU PROBABLY THINK you know how to do a plank. The ab training staple is relatively simple, after all—boiled down to the basics, all you need to do is get down on the ground and hold in place.

Learn how to do the Copenhagen plank, a challenging side plank variation that strengthens your hips and core and improves shoulder stability.

The fitness world has embraced a new champion in core training, and traditional sit-ups have taken a backseat. The plank, despite its deceivingly simple appearance, has captured worldwide attention ...

(CNN) — If you’re like most people, when you hear the word core, you probably think of six-pack abs. But your core is so much more than that — it’s the powerhouse that stabilizes, supports and moves ...