Vertical climbers are cardio machines that mimic a climbing movement, creating a full-body workout. Jake Gyllenhaal used them a lot when getting in MMA-fighter-shape for "Road House," his trainer said ...

LIFTERS LONG HELD to the assumption that any amount of cardio would kill their gains. Thankfully, that type of bro-science is now largely ignored—especially by guys with lofty goals like body ...