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. While many types of ...

The “stomach vacuum” may sound like a plastic surgery trend, but it's actually an abdominal exercise. And it's a popular one. The hashtag #stomachvacuum has more than 100 million views on TikTok, but ...

A TikTok trend that actually works: The 'stomach vacuum' is an isometric exercise that's effective at working the abs. The “stomach vacuum” may sound like a plastic surgery trend, but it's actually an ...

You don't necessarily need to do a ton of high-impact moves in your workouts. Case in point: isometric exercises, or static holds, that recruit your muscles with time under tension. These can look ...

Seeking a way to revamp your workout routine and boost its effectiveness? Try incorporating isometric exercises. They’re simpler than they sound. Isometric exercises simply involve squeezing and ...

If you’ve ever held a plank, paused at the bottom of a squat or pressed your palms together in front of your chest, you’ve done an isometric exercise. Ta-da! These holds might look simple — after all, ...