スキーおよびスノーボードにおける傷害発生率と傷害傾向

―縦断的かつ横断的視点からの検討―

抄録

The aim of this study was to examine and compare the trends among skiing and snowboarding injuries. We tallied the total annual number of visitors to 3 ski areas over the past 3 years and investigated the number of persons who developed sprain, bone fracture, bruise, cut/contused wound, bone dislocation, and other injuries. We also examined the details of the individual injury types, and calculated the rate of blows to the head and the usage of helmets. As a result, it was found that the incidence of sprain was higher for skiing, and that of bone fracture and dislocation was higher for snowboarding. In skiing, sprain of the knee joint was observed most often, followed by head bruising, body trunk bruising, and bone fracture of the lower extremity, in this order. In snowboarding, bone fracture of the forearm was observed most often, followed by body trunk bruising, dislocation of the shoulder, and head bruising, in this order. The incidence of injury was higher for snowboarding compared with skiing, except for that of sprain. In skiing, sprain of the knee joint accounted for approx. 30%, which was significantly high. In addition, the overall occurrence of lower extremity injuries accounted for greater than 50%. In snowboarding, the incidence of injury of the upper arm and head was high. Although the incidence of head impacts was similar between skiing and snowboarding, the usage of helmets was significantly lower in snowboarders. Since head blows could cause serious injuries, one of the future tasks for injury prevention will be to increase the usage of helmets.