Quick Answer: Knee pain in active people most commonly presents as IT band syndrome (lateral knee pain) or patellofemoral pain syndrome — "runner's knee" (anterior knee pain). Both are biomechanical problems driven by hip weakness, muscle imbalances, and movement faults — not structural damage to the knee itself. At Marques Therapy , 88 Southwark Bridge Rd, London SE1, Sosthenes Marques performs a clinical biomechanical assessment to identify the exact driver of knee pain an