No matter where you’re doing them – TRX class, yoga, Pilates, or on your own – planks are hard. They should be, considering they engage major muscle groups all over the body, including in the core, ...

A plank is more difficult than it looks. You have to use all of your muscle groups, including your core, abs, arms, back, shoulders, glutes and legs. It’s normal to struggle to do a plank. Many of my ...

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 ...

According to a fitness expert at Lifetime in New York City, how long you should be able to hold a plank for varies given how ...

Most people train their core with good intentions but poor results. Endless crunches, rushed planks, and random workouts ...

Ask a bunch of trainers to give a short list of their favorite exercises, and the plank will likely top many of them. And for good reason: While you probably pencil the plank into your routine to work ...

These are the top exercises you're doing wrong, according to trainers. Find out how to correctly do planks, bridges, and beyond. When you’re flying through your workout every day, there’s not a whole ...