David Kirsch may train celebrities like Jennifer Lopez, Britney Spears, and Heidi Klum, but thanks to the power of the Internet, we like to think he's our trainer, too. Kirsch regularly posts his ...

First of all, you need to be in a caloric deficit. With less body fat, you can see the ab muscles and obliques,” said Sara ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images If you have 10 minutes to spare and a couple of dumbbells to hand, then this ...

If you’re looking for a quick core workout to get your abs popping this Monday morning, I’ve found it — my favorite Pilates instructor, Lilly Sabri, just shared this five-minute weighted core workout.

Feeling inspired by Livvy Dune’s abs, but don’t quite have the same amount of hours to spend in the gym as her? We’ve good news: you actually don’t need *that* much time to make a difference when it ...

By targeting your ab muscles in an upright position, the workout becomes more functional as it relates to running.

Has your core routine gotten stale? I know mine has. While crunches, Russian Twists, and planks are effective, after doing them a bunch, they might get a little, well, boring. Not to mention, there ...

As a runner, you don’t want to neglect core strength. These key midsection muscles provide the stabilization and upright posture you need to run efficiently and injury-free. And you can really turn up ...

You have to engage your core constantly as you sit straight, stand tall, and walk confidently, which requires a lot of endurance in your midsection muscles. The best way to build ab endurance? A core ...

No offense to sit-ups, planks, and hollow holds, but basic core exercises can feel drab day after day. They work the abdominals, but if you’re looking for stronger, sculpted abs, let me introduce you ...

"Sometimes pressing play and just starting is the hardest part," says fitness instructor Tanner Courtad in this total-body workout video. "But what you'll always find out is that you build momentum, ...