Research on the effects of impact acceleration on the body, primarily the head and neck, has been conducted at the U.S. Naval Biodynamics Laboratory for nearly two decades. Over 150 Navy enlisted men have been subjected to impact acceleration on a sled propelled by a nitrogen-powered horizontal accelerator. Their head and neck kinematic responses during the experimental impact were measured and stored in automated data bases. Similarly, anthropometric measurements were recorded for these subjects. To investigate the relation between head and neck anthropometry and response to impact acceleration, tests involving 15 subjects were selected. A strong relation was found between head and neck anthropometry and linear acceleration of the head along the Z axis. Lesser correlations were determined between the anthropometric measurements and linear acceleration along the X axis and angular acceleration about the Y axis. These findings are potentially applicable to areas such as aircrew selection, physical training and protective equipment development.

译文

在美国海军生物动力学实验室进行了近二十年的研究,研究了撞击加速度对身体 (主要是头部和颈部) 的影响。超过150名海军士兵在氮气动力水平加速器推动的雪橇上受到冲击加速。测量了实验撞击过程中的头部和颈部运动学响应,并将其存储在自动数据库中。同样,记录了这些受试者的人体测量结果。为了研究头颈部人体测量与对冲击加速度的反应之间的关系,选择了涉及15名受试者的测试。发现头部和颈部人体测量学与头部沿z轴的线性加速度之间存在很强的关系。人体测量与沿x轴的线性加速度和绕y轴的角加速度之间的相关性较小。这些发现可能适用于机组人员选择,体育锻炼和防护设备开发等领域。

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