hello... this caught my eye because I've had to have knee surgery from pitching. I'm fairly confident my mechanics are sound... it can be a genetic thing. Take her to the doctor and make sure it's not patella tendinitis. That is what I had to have. Mine was severe enough that I needed SURGERY not a scope. It's commonly known as jumper's knee. Commonly occurs in basketball players.
7x your body weight goes through your joints when a pitcher pushes off and lands when pitching. Some bodies are not made to sustain that and additional rehab/conditioning is needed. If it's caught early, physical therepy and a weight program will suffice. If not, she may need a procedure. This is, of course, assuming she has the same thing as I had.
Bill
Thanks...we have a Dr's appt and I had a physical therapist check her out this morning and he said that it could be femural tibia syndrome (knee tendonitis) or a name I can't remember and thinks she just need to start stretching real good and get on a strengthening program for her hamstrings and legs.