Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

Doing core before you start clocking miles can save you time and help you run more efficiently.

You’ve probably seen it all over your feeds: Fitness pros and physical therapists talking about “training the deep core.” But unlike crunches or Russian twists, these exercises don’t come with a pump ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Build bulletproof core muscles using these three exercises without weights, ...

The path to core strength is as varied as the number of exercises that build your core system. There are hundreds of exercises from which to select when working to build the core, but this type of ...

Morning exercises for lower belly fat after 50, a CSCS fitness trainer shares 5 moves to tighten your core and burn more ...

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 ...

You’re probably familiar with the abs muscles—the ones you see poppin' on celebs like J.Lo or Halle Berry, but there’s way more to core strength than those visible six-pack muscles. Behind the scenes, ...

Your core is, quite literally, at the center of everything you do. It’s what powers your paddle strokes, allows you to reach for a climbing hold, and makes hoisting a heavy pack and carrying it over ...