Move beyond the basic plank and discover the high-performance benefits of training in 360 degrees. Mastering rotational power ...

This simple bodyweight exercise is transforming routines across the U.S. by delivering full-core activation in less than a minute.

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

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.