From walkers to marathoners, and casual gym-goers to CrossFit Games athletes, injuries happen. And there's never a good time for them. They can happen at any time, at any level of activity or fitness, and have no deference for a particular sport. But fear not! With those scary thoughts in mind, we thought we'd put your mind at ease and help you to both prevent injury, and in the case of it, recover faster.  Jumper’s knee and general knee pain are among the most common complaints we hear at ...