Strengthening Exercises Physical Therapy Exercises for Runner's Knee Exercise Back ExercisesJun 23, 2016 Runner’s knee, or patellofemoral pain syndrome, is a condition that causes a dull or aching pain around or under your kneecap, according to the Am... Join Us A short sentence describing what someone will receive by subscribing Your email Subscribe100% free, Unsubscribe any time! Follow us