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首页> 美国卫生研究院文献>Brain Communications >Subconcussive brain vital signs changes predict head-impact exposure in ice hockey players
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Subconcussive brain vital signs changes predict head-impact exposure in ice hockey players

机译：船只脑生命体征变化预测冰球运动员中的头部冲击暴露

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The brain vital signs framework is a portable, objective, neurophysiological evaluation of brain function at point-of-care. We investigated brain vital signs at pre- and post-season for age 14 or under (Bantam) and age 16–20 (Junior-A) male ice hockey players to (i) further investigate previously published brain vital sign results showing subconcussive cognitive deficits and (ii) validate these findings through comparison with head-impact data obtained from instrumented accelerometers. With a longitudinal study design, 23 male ice hockey players in Bantam (n = 13; age 13.63 ± 0.62) and Tier II Junior-A (n = 10; age 18.62 ± 0.86) divisions were assessed at pre- and post-season. None were diagnosed with a concussion during the season. Cognitive evoked potential measures of Auditory sensation (N100), Basic attention (P300) and Cognitive processing (N400) were analysed as changes in peak amplitudes and latencies (six standard scores total). A regression analysis examined the relationship between brain vital signs and the number of head impacts received during the study season. Significant pre/post differences in brain vital signs were detected for both groups. Bantam and Junior-A players also differed in number of head impacts (Bantam: 32.92 ± 17.68; Junior-A: 195.00 ± 61.08; P < 0.001). Importantly, the regression model demonstrated a significant linear relationship between changes in brain vital signs and total head impacts received (R = 0.799, P = 0.007), with clear differences between the Bantam and Junior-A groups. In the absence of a clinically diagnosed concussion, the brain vital sign changes appear to have demonstrated the compounding effects of repetitive subconcussive impacts. The findings underscored the importance of an objective physiological measure of brain function along the spectrum of concussive impacts.
机译：大脑生命体征框架是一种便携式的，客观的，神经生理学大脑功能在定点护理评估。我们调查之前及之后季节大脑生命体征14岁或以下（矮脚鸡）和16-20岁（初中-A）男子冰球运动员于（i）进一步调查之前发表的大脑生命体征结果显示subconcussive认知缺陷和（ii）通过与来自仪表的加速度计获得的头部撞击的数据比较验证了这些发现。具有纵向研究设计，在矮脚鸡23名雄性冰球运动员（N = 13;年龄13.63±0.62）和II级小型-A（N = 10;年龄18.62±0.86），在分割前和后季节进行了评估。没有被诊断为在赛季中脑震荡。认知诱发听觉（N100），基本注意（P300）和认知处理（N400）进行分析，如峰值幅度和延迟（六个标准总分）变化的潜在措施。回归分析研究大脑的生命体征和在研究季节内的头部撞击数量之间的关系。显著前两组检测/脑生命体征后的差异。矮脚鸡和初级-A玩家也不同于的头部撞击数（矮脚鸡：32.92±17.68;小型-A：195.00±61.08; P <0.001）。重要的是，回归模型证实接收在脑生命体征的变化和总头影响（R = 0.799，P = 0.007），与矮脚鸡和初级-A组之间的明显的差异之间的显著线性关系。在没有临床诊断脑震荡，脑生命体征变化似乎已经证明的重复subconcussive影响的复合效应。这些发现强调沿震荡冲击的频谱脑功能的目的生理测试的重要性。

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