I’d been attending CrossFit workouts for two months before I began to learn the Kipping Pull-Up. Until that point, every Pull-Up I’d ever performed had been the more traditional strict, dead-arm hang, ...

JACKSON TWP. David Lake swung the kettlebell from below his knees to above his head, rep after rep, like a man trying to start a diabolical lawnmower. Sweat rolled off his bald head and soaked his ...

Vitality at CrossFit Roots, 2406 30th St., Boulder, 303-578-8455, crossfitroots.com. Instructor: Ryan Landis has a bachelor’s degree in exercise science and was the first employee at CrossFit Roots ...