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.

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 ...

Adding leg lifts to the reverse plank makes it more dynamic by engaging more muscle groups at once. While holding a standard ...

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.