Running’s great. The fresh air, the freedom, the simplicity. You can’t beat it. But to improve as a runner, you need to do more than just run. That’s where cross-training comes in. It can help you to ...

"CARDIO MACHINE" HAS become a catch-all term to describe exercise bikes, treadmills, rowers, and ellipticals. Categorizing an entire section of your commercial gym can be practical, sure—but the ...