Grade: 3
Weak hips and quads combined with sharp increase in activity = niggly right knee... sigh! Also likely has something to do with my left ankle sprain in April 2012.
I think it has been a month or two since the knee has been niggle-free. It seems that strengthening the muscles in the rest of my leg has helped. I am also careful to have good posture when running, particularly when running downhill which is how I picked up this niggly knee to begin with.