If you read that headline and immediately pictured a plank, you’re probably right. This time, though, the challenge happens ...

CORE TRAINING IS far too often misunderstood. The default plan for lots of guys is to crank through situp reps—but that only trains one function of the core, trunk flexion, and it's easy to get sloppy ...

The hollow hold position requires you to lie on your back and lift your legs and shoulders off the ground, while your lower back stays in contact with the floor. Your arms should be stretched overhead ...

Core training is far too often misunderstood. The default plan for lots of guys is to crank through sit-up reps – but that only trains one function of the core, trunk flexion, and it's easy to get ...