Stop wasting time on crunches and start training your core to resist movement for maximum power and injury prevention.

You likely know that maintaining a strong core is important for your overall health and fitness. But finding the time—and resources—to build that necessary strength can be, well, challenging, ...

It’s only six moves and you do each one lying on your back ...

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.