This simple floor exercise is redefining how Americans train their core—without crunches, machines, or strain on the spine.

Add Yahoo as a preferred source to see more of our stories on Google. Unlike regular crunches, which require lifting the upper body off the ground, reverse crunches involve lifting the hips and legs ...

I was doing an at-home workout the other night and didn't like one of the ab exercises the trainer had listed for the oblique muscles, so I decided to swap it out with a side-lying crunch. It's been ...

With holidays, year-end projects and family vacations, our fitness can fall short from time to time, but simple, “do anywhere” kind of moves can definitely help. Our move today is an Assisted Standing ...

If you’re looking to tone your core, the bicycle crunch is a good addition to your workout. It has the benefits of the standard crunch, but it engages additional core muscles — working your internal ...

I'm a personal trainer who's certified in Pilates, but I first discovered the popular workout while searching for relief for my low-back issues. Pilates focuses the deep abdominal muscles, including ...

Welcome to Start TODAY. Sign up for our free Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Many people don’t use correct form when doing core ...