Eliason Paul, Hagel Brent E, Palacios-Derflingher Luz, Warriyar K V Vineetha, Bonfield Stephan, Black Amanda Marie, Babul Shelina, Mrazik Martin, Lebrun Constance, Emery Carolyn
Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Albert, Canada
Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada.
Br J Sports Med. 2022 Dec;56(23):1337-1344. doi: 10.1136/bjsports-2021-104691. Epub 2022 Feb 15.
To compare rates of injury and concussion among U-15 (ages 13-14 years) ice hockey players playing in leagues allowing body checking, but who have a varying number of years of body checking experience.
This 5-year longitudinal cohort included U-15 ice hockey players playing in leagues where policy allowed body checking. Years of body checking experience were classified based on national/local body checking policy. All ice hockey game-related injuries were identified using a validated injury surveillance methodology. Players with a suspected concussion were referred to a study sport medicine physician. Multiple multilevel Poisson regression analysis was performed, adjusting for important covariates and a random effect at a team level (offset by game exposure hours), to estimate injury and concussion incidence rate ratios (IRRs).
In total, 1647 players participated, contributing 1842 player-seasons (195 players participating in two seasons). Relative to no body checking experience, no significant differences were found in the adjusted IRRs for game-related injury for players with 1 year (IRR=1.06; 95% CI: 0.77 to 1.45) or 2+ years (IRR=1.16; 95% CI: 0.74 to 1.84) body checking experience. Similarly, no differences were found in the rates of concussion for players with 1 year (IRR=0.92; 95% CI: 0.59 to 1.42) or 2+ years (IRR=0.69; 95% CI: 0.38 to 1.25) body checking experience.
Among ice hockey players aged 13-14 years participating in leagues permitting body checking, the adjusted rates of all injury and concussion were not significantly different between those that had body checking experience and those that did not. Based on these findings, no association was found between body checking experience and rates of injury or concussion specifically in adolescent ice hockey.
比较15岁以下（13 - 14岁）参加允许身体冲撞的冰球联赛的球员的受伤率和脑震荡率，这些球员的身体冲撞经验年限各不相同。
这项为期5年的纵向队列研究纳入了在政策允许身体冲撞的联赛中参赛的15岁以下冰球运动员。根据国家/地方身体冲撞政策对身体冲撞经验年限进行分类。使用经过验证的伤病监测方法识别所有与冰球比赛相关的伤病。疑似脑震荡的球员被转介给研究运动医学医生。进行了多次多水平泊松回归分析，对重要协变量和团队层面的随机效应进行了调整（以比赛暴露时长为偏移量），以估计受伤率和脑震荡发病率比（IRR）。
共有1647名球员参与，贡献了1842个球员赛季（195名球员参加了两个赛季）。与没有身体冲撞经验相比，有1年（IRR = 1.06；95% CI：0.77至1.45）或2年以上（IRR = 1.16；95% CI：0.74至1.84）身体冲撞经验的球员在调整后的与比赛相关的受伤IRR方面未发现显著差异。同样，有1年（IRR = 0.92；95% CI：0.59至1.42）或2年以上（IRR = 0.69；95% CI：0.38至1.25）身体冲撞经验的球员在脑震荡率方面也未发现差异。
在参加允许身体冲撞的联赛的13 - 14岁冰球运动员中，有身体冲撞经验的球员和没有身体冲撞经验的球员在调整后的所有受伤率和脑震荡率方面没有显著差异。基于这些发现，未发现身体冲撞经验与青少年冰球运动员的受伤率或脑震荡率之间存在关联。
