Imagine yourself slamming, swinging around, pulling, and moving a hefty, supersized rope, and then feeling like your arms, lungs, and body are on fire, after less than a minute. Battle ropes are just ...

Double-unders. That hyphenated word strikes fear into the hearts of many CrossFitters. In a world that’s mostly made up of brute strength, endurance, and grit, double-unders are one of the rare ...