“…Although the number of females participating in sports has increased because of the implementation of Title IX in 1972, sports participation rates among males continue to surpass that of females (National Federation of State High School Associations, n.d.; Stevenson, 2007). In sports played by both sexes, girls experience higher concussion rates than boys (Covassin, Moran, & Elbin, 2016;Gessel, Fields, Collins, Dick, & Comstock, 2007;Marar, McIlvain, Fields, & Comstock, 2012), and girls are more likely to report past concussions than boys (Miyashita, Diakogeorgiou, & VanderVegt, 2016). Differences in sports practices and rules may explain some of this differencefor instance, helmets are required for high school lacrosse for males but not females (Xiang, Collins, Liu, McKenzie, & Comstock, 2014).…”