knee injury

A little background here, I'm a 19-year-old college tennis player and I have a history of knee problems along with very bad tennis endurance. Hence, I have decided to start using a stationary bike as it is supposed to be easy on the knees. My question is how hard should I ride the bike? Like...

Hi there! I am a first-year college tennis player from India and I was wondering if anyone could help me improve my endurance with some exercises that aren't that bad for the knees. I have had a history of knee problems over the years and I'll be honest, my endurance is pretty much the worst...

It doesn't appear to be in the knee itself, but actually right underneath the knee, at the part of the shin that leads to the knee joint, on the inner side of the top of the shin bone. No pain when sitting, standing, or even walking / running most of the time, but when changing direction or...

I've noticed my left knee clicking since a few weeks while walking around the house. I play on red clay, 5-6x a week and hit the gym 2x a week. I include single leg work with medium weights. Not doing too much stretching. I do not really have any pain the knee but some slight discomfort after...

Hi all, I'm a 42 year old 4.0 player who lives in Pasadena, California, a few miles up the road from Los Angeles. Tennis is my primary sport (and lifelong obsession) and I play about 4 times a week -- a mix of drill classes and match play (both for fun and for my USTA teams -- but of course...