If you're like me, you've taken one look at the ab wheel at the gym and gone running back to your mat. For such a small piece of equipment, the ab wheel is intimidating, and with good reason. Eric and ...

While an ab roller might look like a fun apparatus you’d see in a kid’s playground, it’s actually a useful piece of workout equipment designed to build core strength through anti-rotational movements, ...

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. This month in the ...

Master the ab wheel rollout with our step-by-step guide to proper form, expert cues, and building a bulletproof midsection. If you’ve spent any real time in the gym, you’ve probably seen the ab roller ...

At first glance, the ab wheel may look like an innocent—and perhaps even fun—gym accessory. Yet in practice? It’s an advanced tool that delivers a seriously intense, next-level core challenge. For ...