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.

Why core matters: A strong core supports balance, posture, and injury prevention, while boosting performance in lifts and daily activities. Smart training principles: Progressive overload, resisting ...

The “core” refers to the main muscles in the trunk of the body. They help protect the spine, provide stability, and increase strength. Strengthening the core muscles can improve athletic performance, ...

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 ...

U.S. Navy Religous Programs Specialist 3rd Class Whitney Hooker, with Marine Wing Support Squadron 171, performs a deadlift during a deadlift competition at Marine Corps Air Station Iwakuni, Japan in ...

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 ...

A quick scan of any gym will show you: Abs exercises are one of the most popular ways people fill their workout time. That’s great—but many folks fall into the trap of prioritizing core workouts in ...

Editor’s note: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical ...