Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Br J Sports Med. 2020 Apr;54(7):414-420. doi: 10.1136/bjsports-2019-101092. Epub 2019 Sep 6.
To compare rates of injury and concussion among non-elite (lowest 60% by division of play) Bantam (ages 13-14 years) ice hockey leagues that disallow body checking to non-elite Bantam leagues that allow body checking.
In this 2-year cohort study, Bantam non-elite ice hockey players were recruited from leagues where policy allowed body checking in games (Calgary/Edmonton 2014-2015, Edmonton 2015-2016) and where policy disallowed body checking (Kelowna/Vancouver 2014-2015, Calgary 2015-2016). All ice hockey game-related injuries resulting in medical attention, inability to complete a session and/or time loss from hockey were identified using valid injury surveillance methodology. Any player suspected of having concussion was referred to a study physician for diagnosis and management.
49 body checking (608 players) and 33 non-body checking teams (396 players) participated. There were 129 injuries (incidence rate (IR)=7.98/1000 hours) and 54 concussions (IR=3.34/1000 hours) in the body checking teams in games. After policy change, there were 31 injuries (IR=3.66/1000 hours) and 17 concussions (IR=2.01/1000 hours) in games. Policy disallowing body checking was associated with a lower rate of all injury (adjusted incidence rate ratio (IRR)=0.44; 95% CI: 0.27 to 0.74). The point estimate showed a lower rate of concussion (adjusted IRR=0.6; 95% CI: 0.31 to 1.18), but this was not statistically significant.
Policy change disallowing body checking in non-elite Bantam ice hockey resulted in a 56% lower rate of injury. There is growing evidence that disallowing body checking in youth ice hockey is associated with fewer injuries.
比较禁止身体接触的非精英（按分区划分最低 60%）少年冰球联赛（13-14 岁）和允许身体接触的非精英少年冰球联赛之间的受伤和脑震荡发生率。
在这项为期 2 年的队列研究中，从允许在比赛中进行身体接触的政策的少年非精英冰球联赛（2014-2015 年卡尔加里/埃德蒙顿，2015-2016 年埃德蒙顿）和不允许进行身体接触的政策的少年非精英冰球联赛（2014-2015 年基洛纳/温哥华，2015-2016 年卡尔加里）招募少年非精英冰球运动员。使用有效的伤害监测方法确定所有导致医疗关注、无法完成比赛和/或无法参加冰球比赛的与冰球比赛相关的伤害。任何疑似脑震荡的运动员都将被转介给研究医生进行诊断和管理。
有 49 个允许身体接触的队伍（608 名运动员）和 33 个不允许身体接触的队伍（396 名运动员）参与了研究。在身体接触组的比赛中，有 129 例受伤（发生率（IR）=7.98/1000 小时）和 54 例脑震荡（IR=3.34/1000 小时）。在政策改变后，在比赛中，有 31 例受伤（IR=3.66/1000 小时）和 17 例脑震荡（IR=2.01/1000 小时）。禁止身体接触的政策与所有伤害发生率降低有关（调整后的发病率比（IRR）=0.44；95%置信区间：0.27 至 0.74）。虽然点估计显示脑震荡发生率较低（调整后的 IRR=0.6；95%置信区间：0.31 至 1.18），但没有统计学意义。
禁止非精英少年冰球中的身体接触的政策变化导致受伤率降低了 56%。越来越多的证据表明，禁止青少年冰球中的身体接触与减少伤害有关。
