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An Evaluation of the Riddell IQ HITS System in Prediction of an Athlete's Head Acceleration

机译：Riddell IQ击中系统预测运动员头加速度的评估

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摘要

This paper explores the accuracy of the Riddell IQ HITS system in predicting an athlete's head acceleration. The data will be useful in efforts made to determine methods of reducing the risk of concussion. A Hybrid III anthropomorphic head was instrumented with a triaxial accelerometer, fitted with a Riddell IQ HITS helmet, and dropped onto a hard steel plate at varying impact angles. The resulting accelerations were recorded and compared for each angle. High speed camera images were also examined to better analyze the rigid body motion of the helmet relative to the head. The results showed that the HITS system agreed with the measured Hybrid III accelerations at angles near the crown of the head, but did not agree well with most of the other angles, especially for oblique impacts near the side or back of the head. High speed images verified that this discrepancy was caused by the rigid body motion of the helmet relative to the head. The results also showed that the precision of the system depends strongly on the loading conditions of the impact. Further investigation is needed to determine the accuracy of the system for rotational acceleration.
机译：本文探讨了Riddell IQ击中系统预测运动员的头部加速度的准确性。数据将在努力中有用，以确定降低脑震荡风险的方法。杂交III拟方针用三轴加速度计仪表，配有RIDDELL IQ HITS头盔，并在不同冲击角下掉到硬钢板上。记录并比较每个角度的加速度。还检查了高速相机图像，以便更好地分析头盔的刚性体运动相对于头部。结果表明，击中系统同意在头顶附近的角度下测量的混合III加速度，但与大多数其他角度都不吻合，特别是对于头部侧面或背面附近的倾斜冲击。高速图像验证了这种差异是由盔甲相对于头部的刚体运动引起的。结果还表明，该系统的精度强烈取决于撞击的负载条件。需要进一步调查以确定旋转加速度的系统的准确性。

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