High Energy Side and Rear American Football Head Impacts Cause Obvious Performance Decrement on Video.
High Energy Side and Rear American Football Head Impacts Cause Obvious Performance Decrement on Video.
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DOI：
10.1007/s10439-020-02640-8
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发表时间：
2020-11
影响因子：
3.8
通讯作者：
Stemper B
中科院分区：
文献类型：
--
作者：
Bartsch AJ;Hedin D;Alberts J;Benzel EC;Cruickshank J;Gray RS;Cameron K;Houston MN;Rooks T;McGinty G;Kozlowski E;Rowson S;Maroon JC;Miele VJ;Ashton JC;Siegmund GP;Shah A;McCrea M;Stemper B
本研究的目的是比较头部碰撞数据采集与碰撞监测护齿套（IMM）的视频观察到的运动员的碰撞后的行为相对于他们的碰撞前的行为。共有n = 83大学和高中美式足球运动员穿着IMM，并记录了超过260运动员曝光的视频。前运动员和临床医生在两步过程中审查了视频，并根据先前发布的明显性能下降（OPD）定义对异常碰撞后行为进行了分类。工程师对数据集进行了定性审查，以检查头部撞击和非头部撞击信号的频率和幅度。前运动员评审员确定了2305例头部撞击和16例潜在OPD撞击，其中13例被临床评审员单独归类为可能OPD撞击。所有13个可能的OPD撞击都在IMM测量的撞击中的前1%（范围40 - 100 g，3.3 - 7.0 m/s和35 - 118 J），13个撞击中的12个（92%）是头部的侧面或后部。在提出任何类型的OPD影响幅度或方向阈值之前，这些发现需要在更大的数据集中进行确认。然而，本研究中的OPD病例与先前发表的在高中和大学美式足球运动员中寻找OPD迹象，影响程度和方向的影响监测研究相比，具有优势。我们的OPD研究结果也与NFL重建研究的侧面/后方碰撞中脑震荡和亚脑震荡影响幅度的范围进行了比较，以及先前的理论，分析模型和实证研究表明，对脑损伤的方向敏感性存在单一的高能量影响。
The objective of this study was to compare head impact data acquired with an impact monitoring mouthguard (IMM) to the video-observed behavior of athletes’ post-collision relative to their pre-collision behaviors. A total of n=83 college and high school American football players wore the IMM and were video-recorded over 260 athlete-exposures. Ex-athletes and clinicians reviewed the video in a two-step process and categorized abnormal post-collision behaviors according to previously published Obvious Performance Decrement (OPD) definitions. Engineers qualitatively reviewed datasets to check head impact and non-head impact signal frequency and magnitude. The ex-athlete reviewers identified 2305 head impacts and 16 potential OPD impacts, 13 of which were separately categorized as Likely-OPD impacts by the clinical reviewers. All 13 Likely-OPD impacts were in the top 1% of impacts measured by the IMM (ranges 40–100g, 3.3–7.0 m/s and 35–118 J) and 12 of the 13 impacts (92%) were to the side or rear of the head. These findings require confirmation in a larger data set before proposing any type of OPD impact magnitude or direction threshold exists. However, OPD cases in this study compare favorably with previously published impact monitoring studies in high school and college American football players that looked for OPD signs, impact magnitude and direction. Our OPD findings also compare well with NFL reconstruction studies for ranges of concussion and sub-concussive impact magnitudes in side/rear collisions, as well as prior theory, analytical models and empirical research that suggest a directional sensitivity to brain injury exists for single high-energy impacts.
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影响因子：
4.8
作者：
Guskiewicz, Kevin M.;Mihalik, Jason P.;Hooker, Daniel N.
通讯作者：
Hooker, Daniel N.
影响因子：
4.8
作者：
Guskiewicz, KM;Marshall, SW;Jordan, BD
通讯作者：
Jordan, BD
影响因子：
1.2
作者：
Bartsch, Adam;Dama, Rajiv;Stemper, Brian
通讯作者：
Stemper, Brian
影响因子：
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作者：
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通讯作者：
Roberts, William O.
影响因子：
18.4
作者：
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通讯作者：
Comper, Paul