Is it possible to jump so high

that you hurt yourself landing? Massive foot-floor coordination fuckups aside, is it possible to amass such velocity on the way back down from a vertical leap that you're sure to do yourself injury? Obviously not on Earth, but what about in lower-gravity situations?

You can jump up in the air and roll over at the same time, if you apply enough rotational force your face will smack into the floor generating substantial pain.