“…Participation in extreme sports, which are largely recreational rather than part of school leagues, is significantly increasing, with the number of skateboarders, for example, increasing 178 percent from 1995 to 2005 [5] and up 14 million US participants [4]. A study presented at the 2014 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS) attempted to quantify the injury risk for participants in the extreme sports of mountain biking, motocross, skateboarding, surfing, snow machining, snow skiing, and snowboarding [4]. This study revealed that skateboarding, snowboarding, and skiing carried the highest incidence of head and neck injury and that concussion was the most common head and neck injury in extreme sports.…”