DiFabio Melissa S, Buckley Thomas A
Department of Biomedical Engineering, University of Delaware, Newark, DE, USA.
Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE, USA.
Int J Exerc Sci. 2021 Apr 1;14(1):149-161. doi: 10.70252/MSNJ4958. eCollection 2021.
Cognitive training (CT) is an effective technique to improve neurological performance, but has not been investigated as a head impact primary prevention strategy. The purpose of this study was to investigate the CT's effectiveness in reducing head impact kinematics in youth ice hockey players. Twenty youth were divided into two groups: a CT and Control group. The CT group performed two 30-minute sessions of IntelliGym CT weekly for 20 weeks and the control group performed two 30-minute sessions weekly evaluating hockey videos. The dependent variables, number of head impacts, cumulative linear acceleration (CLA) and rotational acceleration (CRA) and mean linear and rotation peak acceleration, were compared with repeated measures ANOVAs, with post-hoc for main effect of time for each group, between the first and second half of the season. There were significant interactions for number of head impacts ( = 0.014) and CLA ( = 0.043) and post-hoc testing identified reductions in the second half of the season for the CT, but not control, group. There were no interactions for CRA, mean peak linear acceleration, and mean peak rotational acceleration. These preliminary results suggest CT may be an effective primary prevention strategy to reduce head impacts and cumulative linear acceleration in youth ice hockey players.
认知训练（CT）是一种改善神经功能的有效技术，但尚未作为头部撞击的一级预防策略进行研究。本研究的目的是调查CT在减少青少年冰球运动员头部撞击运动学方面的有效性。20名青少年被分为两组：CT组和对照组。CT组每周进行两次30分钟的IntelliGym CT训练，共20周，对照组每周进行两次30分钟的冰球视频评估。在赛季的前半段和后半段之间，使用重复测量方差分析比较了因变量，即头部撞击次数、累积线性加速度（CLA）和旋转加速度（CRA）以及平均线性和旋转峰值加速度，并对每组时间的主要效应进行了事后检验。在头部撞击次数（P = 0.014）和CLA（P = 0.043）方面存在显著交互作用，事后检验发现CT组在赛季后半段有所减少，而对照组没有。在CRA、平均峰值线性加速度和平均峰值旋转加速度方面没有交互作用。这些初步结果表明，CT可能是一种有效的一级预防策略，可减少青少年冰球运动员的头部撞击和累积线性加速度。
