Sumo squat with oblique crunch: Complete a sumo squat, holding a dumbbell in one hand. At the bottom of the squat, use your obliques to lower into an oblique crunch on the same side. The movement ...

This three-move dumbbell workout strengthens your core muscles and is perfect for beginners or those with limited mobility.

This workout is short — just 10 minutes — and requires no equipment. But it packs in a lot of work. PS Fit instructor Natalie White designed it to target your abs, core, and thighs, and she'll have ...

There's something genuinely satisfying about discovering that your kitchen chair can pull double duty. Most of us walk past ...

The toe taps exercise comes straight from Pilates - you won't be sweating it out, but you'll certainly feel it working.

If you’ve grown bored of your basic mat routine for core workouts, incorporating resistance band ab exercises can help you switch it up and even intensify your results. The versatile, simple, 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’ve been training for a while, you’ve probably heard the saying that abs are built in the kitchen. There’s truth to that, but diet alone won’t carve them out. Even with the cleanest eating ...

"The Godfather of Bodybuilding" Charles Glass shared a high-intensity shoulder and abs workout for those competing in the Fit Model division.