Don't be intimidated by the box jump! It may look scary, but once you try it, you'll feel so badass that you'll start to love them! It's a great exercise to tone your legs, butt, and core, and because ...

Rosa Duarte from CrossFit Advanced in Easton, Pennsylvania, teaches you the proper way to perform the box jump, which will help give you an explosive boost to your running. We may earn commission from ...

Add Yahoo as a preferred source to see more of our stories on Google. Box jumps are a staple of CrossFit and group fitness classes, but is the up-and-down exercise really worth all the effort? “The ...

Directions: This is an AMRAP (as many rounds as possible) workout. After warming up for five minutes with some light cardio and dynamic stretching, start the timer for 30 minutes. Complete as many ...

CrossFit's cult-like following can feel a little, um, weird sometimes. It's strange for people to be so in love with something that most people avoid at all costs -- exercise. Especially intense, ...