Instructor: Matthew Bernstein, of Boulder. Bernstein calls himself a “mover.” He is a former fireman and ski patroller who taught CrossFit for three years. He still teaches at a CrossFit gym, but he ...

FEW EXERCISES ARE more brutal than the muscle-up. So why is William Santiago trying to make it even harder? That’s the burning questions here in Chiseled Life Gym in Columbia, Maryland, as Santiago, ...

- Pull-Up: Officially with palms facing you, you reach for an overhead bar, hang for a millisecond (so there's no cheating by using momentum from pushing off the floor) and pull yourself up till your ...

All products are independently selected by our editors. If you buy something, we may earn an affiliate commission. You have to on-ramp CrossFit involves speed, heavy weights and high reps, so coaches ...

The high-intensity, multi-joint movements in CrossFit may help you gain muscle strength and stamina. Adding additional weight to your workouts can further increase muscle gain by adding stress to your ...