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 ...

You can save your back, and isolate the abs as intended, by putting the crunch in reverse. Trainer Bonnie Smith teaches her clients how to do this exercise with the aid of a small, inflated fitness ...

Your core is like a WI-FI router. When it’s strong, everything in your body is connected and working seamlessly. But when ...

You don't need to do thousands of sit-ups or spend hours in the gym to build abs. You can instead do the bare minimum of two to three ab-focused exercises for 20 to 30 minutes a week. Exercises like ...

If you want strong and toned abs, you're going to have to work those muscles from all angles. Basic crunches won't do. Here's a five-move workout that fires up your core, carves your waist, and ...

Hey guys, I'm Tatiana Lampa, and I'm a NASM-certified personal trainer. Today we're going to be working from the core upper and lower abdominals. My client transformed her abs and you can too with ...

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 ...