This document discusses knee pain in outdoor athletes. It provides information on causes of knee pain like pain receptors, the inflammatory cascade, and abnormal nerve function. It discusses conditions like patellofemoral syndrome. It recommends treatments like rest, ice, compression, elevation, natural supplements, physical therapy, massage therapy, chiropractic care, and lifestyle changes. The goal is to rescue the knee from damage, reverse inflammation, re-strengthen muscles, and allow a safe return to activity.