Biomechanical Properties of Concussions in High School Football
Biomechanical Properties of Concussions in High School Football
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DOI：
10.1249/mss.0b013e3181dd9156
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发表时间：
2010-11-01
期刊：
影响因子：
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通讯作者：
Zimmerman, Jerrad
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文献类型：
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作者：
Broglio, Steven P.;Schnebel, Brock;Zimmerman, Jerrad
BROGLIO，S.P.，B.SCHNEBEL，J.J.SOSNOFF，S.SHIN，X.FENG，X.HE，和 J.ZIMMERMAN。高中橄榄球脑震荡的生物力学特性。医学。科学。体育锻炼，卷。 42，第 11 期，第 2064-2071 页，2010 年。简介：运动脑震荡是美国发生的大部分脑损伤，每年有 1.6-380 万例。了解这种损伤的生物力学特性将支持开发更好的诊断和预防技术。方法：我们监测了 2005 年至 2008 年 78 名高中运动员（平均年龄 = 16.7 岁）的所有与足球相关的头部撞击，以更好地了解震荡撞击的生物力学特征。结果：使用头部撞击遥测系统，总共记录了 54,247 次撞击，并捕获了 13 次脑震荡事件进行分析。撞击的分类和回归树分析表明，旋转加速度（>5582.3 rad.s(-2)）、线性加速度（>96.1g）和撞击位置（前部、顶部和后部）产生的脑震荡预测值最高。结论：这些阈值与大学和专业水平报告的阈值几乎相同。如果头部撞击遥测系统用于医疗用途，当撞击超过这些耐受水平时，场边工作人员预计将诊断出五分之一的运动员患有脑震荡。尽管参与者之间的个体差异可能发挥了作用，但当影响产生的变量超过我们的阈值标准时，为什么所有运动员都没有遭受脑震荡尚不完全清楚。与大学和职业运动员相比，青少年运动员的脑震荡阈值相似，这表明在所有级别的运动中脑震荡风险相同。
BROGLIO, S. P., B. SCHNEBEL, J. J. SOSNOFF, S. SHIN, X. FENG, X. HE, and J. ZIMMERMAN. Biomechanical Properties of Concussions in High School Football. Med. Sci. Sports Exerc., Vol. 42, No. 11, pp. 2064-2071, 2010. Introduction: Sport concussion represents the majority of brain injuries occurring in the United States with 1.6-3.8 million cases annually. Understanding the biomechanical properties of this injury will support the development of better diagnostics and preventative techniques. Methods: We monitored all football related head impacts in 78 high school athletes (mean age = 16.7 yr) from 2005 to 2008 to better understand the biomechanical characteristics of concussive impacts. Results: Using the Head Impact Telemetry System, a total of 54,247 impacts were recorded, and 13 concussive episodes were captured for analysis. A classification and regression tree analysis of impacts indicated that rotational acceleration (>5582.3 rad.s(-2)), linear acceleration (>96.1g), and impact location (front, top, and back) yielded the highest predictive value of concussion. Conclusions: These threshold values are nearly identical with those reported at the collegiate and professional level. If the Head Impact Telemetry System were implemented for medical use, sideline personnel can expect to diagnose one of every five athletes with a concussion when the impact exceeds these tolerance levels. Why all athletes did not sustain a concussion when the impacts generated variables in excess of our threshold criteria is not entirely clear, although individual differences between participants may play a role. A similar threshold to concussion in adolescent athletes compared with their collegiate and professional counterparts suggests an equal concussion risk at all levels of play.