Today's ab routines are more versatile than ever. Sure, you can slog through sets of situps and rounds of planks over and over again. But, more and more, core workouts incorporate tools like Swiss ...

Which ab wheels are best? Often considered a difficult part of the body to exercise and define, abdominal work can be tedious. Yet, the results are rewarding. If you want to strengthen your muscles ...

The ab rollout, even when done on your knees, is extremely effective at strengthening your core as it stabilizes your body during the movement. In this video I show a beginner ab wheel progression, ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Reviewers rave about the product, too. One shopper called it a “game changer for core workouts,” and ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

If you want a harder, stronger six-pack, you need an ab roller. If you want a functional, stronger core — which will support you in almost every single lift — you need an ab roller. They may be ...