A simple yet powerful movement widely recommended by U.S. trainers to target the lower abs, improve core stability, and ...

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.

VIRGINIA BEACH, Va. — More than 40 feet up the tower at Fort Jackson, Army recruit Robert Smith missed setting his feet on the 4-by-4 plank from which he was to start rappelling down. “I said: ...

These days, most people understand the importance of basic core strengthening, but functional core workouts are essential for building a resilient body that can handle everything from carrying heavy ...