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.

Maintaining a strong, stable core is among the most common fitness recommendations given to everyone from athletes to people with chronic pain. Terms like "core exercise" and "core activation" get a ...

Single-leg balance test after 65: what 30 seconds says about fall risk, with certified trainer tips to improve fast.

Forget the six-pack—real core strength at 60 is about stability, balance, and independence. Take this three-move trainer challenge to see how your torso measures up for the years ahead.

Physical trainers and rehabilitation specialists are increasingly focusing on a critical but often neglected muscle group that could be the key to improved core strength, better posture, and reduced ...

When most people think of core exercises, they think crunches and sit-ups – possibly because the tactical professions have used them for decades. But given recent changes in military testing, the next ...