Check out the following link on Knee Pain:
https://www.kneeguru.co.uk/KNEEnotes/
This website has some of the most comprehensive information out there as far as Knee Pain information that I have seen on the web thus far…
Keep educating your self,
Bill
Bill@TheKneePainGuru.com
P.S. – Check out my ebook for all the exercises I used to get myself out of knee pain: “Stop Your Knee Pain Now!”