Funk J R, Duma S M, Manoogian S J, Rowson S
Biodynamic Research Corporation, San Antonio, Texas, USA.
Annu Proc Assoc Adv Automot Med. 2007;51:343-61.
The objective of this study was to characterize the risk of mild traumatic brain injury (MTBI) in living humans based on a large set of head impact data taken from American football players at the collegiate level. Real-time head accelerations were recorded from helmet-mounted accelerometers designed to stay in contact with the player's head. Over 27,000 head impacts were recorded, including four impacts resulting in MTBI. Parametric risk curves were developed by normalizing MTBI incidence data by head impact exposure data. An important finding of this research is that living humans, at least in the setting of collegiate football, sustain much more significant head impacts without apparent injury than previously thought. The following preliminary nominal injury assessment reference values associated with a 10% risk of MTBI are proposed: a peak linear head acceleration of 165 g, a HIC of 400, and a peak angular head acceleration of 9000 rad/s2.
本研究的目的是基于从大学水平的美式橄榄球运动员获取的大量头部撞击数据，描述活体人类轻度创伤性脑损伤（MTBI）的风险。通过安装在头盔上且设计为与运动员头部保持接触的加速度计记录实时头部加速度。记录了超过27000次头部撞击，其中包括4次导致MTBI的撞击。通过用头部撞击暴露数据对MTBI发病率数据进行归一化处理，得出参数风险曲线。这项研究的一个重要发现是，至少在大学橄榄球运动环境中，活体人类承受的头部撞击比之前认为的要严重得多，但却没有明显损伤。提出了与10%的MTBI风险相关的以下初步名义损伤评估参考值：头部线性加速度峰值为165g，头部损伤标准值（HIC）为400，头部角加速度峰值为9000rad/s²。
