Patellofemoral Pain Syndrome or anterior knee pain is a common injury that is seen in runners. It usually responds well to foot orthotics, proximal exercises and changes in the gait. Curated resources: http://www.podiatry-arena.com/podiatry-forum/tags/index.php?tag=/patellofemoral-pain/ (Podiatry Arena) http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=8777 (Podiatry Arena) http://www.clinicalbootcamp.net/knee.htm (Clinical Boot Camp) http://www.runresearchjunkie.com/effects-of-foot-orthoses-on-running-mechanics-in-patellofemoral-pain-syndrome/ (Run Junkie) http://www.runresearchjunkie.com/the-paradox-of-patellofemoral-pain-syndrome-and-foot-biomechanics/ (Run Junkie) http://podiapaedia.org/wiki/orthopaedics/knee-problems/patellofemoral-pain-syndrome/ (PodiaPaedia)