ラグビー競技における脳振盪の受傷状況と安全対策  ── 日本ラグビーフットボール協会脳振盪報告書2012〜2015より ──

佐藤 晴彦, 古谷 正博, 中村 明彦, 外山 幸正, 東原 潤一郎, 渡辺 一郎

doi:10.32187/neurotraumatology.40.1_23

Background: The concussion reporting system became part of safe measures in the Japan Rugby Football Union (JRFU) beginning in 1990’s. Only scores of cases had been reported annually until 2011 when the World Rugby Concussion Guideline was published. The JRFU has tried to spread its contents to every player by having safe measuring courses in all regional unions resulting in an increase of 300 reports since 2012.Objective: To ascertain the present state and propose some strategies of concussion management.Method: We reviewed the concussion reports between April 2012 and March 2015. Each report was sent to a regional union mainly by the team manager of the injured player. The match doctor and the referee could also report, when a player had concussion. In the case of non-game time concussion, the team manager reported. Annual number of concussed players, their ages, phase of play where the concussion occurred and repetitive injury cases occurring on the same player were analyzed.Results: There were 1,451 concussions (336 to 388 cases per year) in those 4 years. Eighty five (5.9%) happened to those between 8 and 12 years old, 263 (18.1%) to 13–15, 548 (37.8%) to 16–18, 350 (24.1%) to 19–22, 205 (14.1%) to 23 and over. The phase of play was tackling in 758 cases (52.2%), being tacked in 416 (28.7%), other plays including maul and saving 98 (6.8%) and no-reported incidences in 95 (6.5%). Fifty-five players had two or more concussions for four years, two cases incurred within two weeks.Conclusion: Young and adolescent ages should be the main target of the safe measures approaches to prevent from concussion especially focusing on tackling situations.

ラグビー競技における脳振盪の受傷状況と安全対策 ── 日本ラグビーフットボール協会脳振盪報告書2012〜2015より ──

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