So, What Muscles Do Planks Actually Work? originally appeared on Parade. Planks are one of the most versatile and accessible exercises out there. You don’t need any equipment, and you can do them ...

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 ...