Rooks Tyler, Logsdon Katie, McEntire B Joseph, Chancey Valeta C
United States Army Aeromedical Research Laboratory, 6901 Farrel Road, Fort Rucker, AL 36362.
Mil Med. 2018 Mar 1;183(suppl_1):294-302. doi: 10.1093/milmed/usx208.
With the prevalence of traumatic brain injury (TBI) in the military and athletics, several commercial and military environmental sensors (ES) have been developed to quantify head impact exposures. The performance of five ES in controlled laboratory exposures from direct and indirect loadings, and the effect on impact protection and dynamic retention of the worn Advanced Combat Helmet (ACH) was evaluated. Direct impacts were conducted on a drop tower and indirect impacts used a mini-sled. The ES data were compared with laboratory sensors through cross-correlation and comparison of peak values. The effects of ES on dynamic retention were assessed using a one-way ANOVA with Tukey's post hoc analysis against baseline ACH performance. Two ES provided data during the blunt impact tests: one, attached to the side of the headform, correlated well (φ > 0.92) with the laboratory data; the other, mounted in the helmet crown, calculated peak headform velocity, which predicted laboratory velocity well. During indirect impact tests, one environmental sensor (attached to the side of the headform) provided usable data, which correlated well (φ > 0.92) with laboratory data. The inclusion of the environmental sensors did not introduce any safety hazards during the blunt impact attenuation tests or the dynamic retention tests.
随着创伤性脑损伤（TBI）在军事和体育领域的普遍存在，已经开发了几种商业和军事环境传感器（ES）来量化头部撞击暴露情况。评估了五种ES在直接和间接载荷的受控实验室暴露中的性能，以及对所佩戴的先进战斗头盔（ACH）的冲击防护和动态固定的影响。直接撞击在落塔上进行，间接撞击使用小型雪橇。通过互相关和峰值比较，将ES数据与实验室传感器数据进行了比较。使用单因素方差分析和Tukey事后分析，以ACH的基线性能为对照，评估了ES对动态固定的影响。在钝性撞击测试期间，有两种ES提供了数据：一种附着在头模侧面，与实验室数据相关性良好（φ>0.92）；另一种安装在头盔顶部，计算出头模峰值速度，对实验室速度预测良好。在间接撞击测试期间，一种环境传感器（附着在头模侧面）提供了可用数据，与实验室数据相关性良好（φ>0.92）。在钝性撞击衰减测试或动态固定测试期间，加入环境传感器并未引入任何安全隐患。
