You might ask: what's the purpose of this total-body workout? The answer, at least from a CrossFit point of view, is to have you breathing heavily for 20 minutes straight, target every part of your ...

We’ve got two main associations with the best jump rope workouts: kids having a blast doing tricks on the playground, and epic training montages in boxing movies. The lesson here seems clear: jumping ...

Add Yahoo as a preferred source to see more of our stories on Google. Most gyms have plyometric boxes. They're also found in parks with public workout areas. Photo: Getty Images Building body strength ...