I like this idea, I was actually thinking of making a post here earlier today about something that's been nagging me on and off for a few years. Basically, when I've been doing a lot of activities that really work my legs out cardio/endurance wise (mountain biking, ski touring, downhill skiing), I have started to get some pain on the outside part of my knee. Only on the right side, of my right knee. It doesn't feel like it's internal to the joint, if that makes any sense, and I've never had knee problems in my life (I don't jog often, but I can jog 5+ miles without any knee pain). It seems like something else in my leg is getting tired out or exhausted, and that causes the pain along the knee. If I stop and take a break to let my leg rest up, the pain subsides quickly, but then once I start moving again it will come back as I get tired out again. The pain does not ache after the exercise, nor is there any specific soreness/stiffness associated with it the day after.
Any recommendations on what it may be, and either some stretches to help manage it or exercises to specifically target it? Other than the obvious "do squats and get diesel legs back" suggestion.