“…Demographic factors that increase risk Female sex 18,29,47,48 Older age 15,23,34,49 Anatomic factors that increase risk High foot arches 13,40 Knock knees 14 High Q angles 14 Physical fitness characteristics and effects on injury Low aerobic fitness -increases risk 9,18,21,34,35,47,49 Low muscle endurance -increases risk 9,18,21,34,35,47,49 Muscle strength -no association with injury risk 12,15,29 Low and high flexibility -increases injury risk 5,12,15,23,29,37 Body composition -low and high BMI increase injury risk 9,16,34,35,47 Health behaviors that increase risk Sedentary Lifestyle/inactivity 9,15,16,29,47 Tobacco use 12,15,17,…”