Goldsmith W, Kabo J M
Am J Sports Med. 1982 Jan-Feb;10(1):31-7. doi: 10.1177/036354658201000108.
An experiment was conducted to ascertain the effectiveness of commercially available baseball headgear in a simulated environment where the head of the batter is struck. Using a compressed air cannon, baseballs were fired at an instrumented headform at frontal and temporal locations with and without a helmet. Striking velocities ranged from 50 to 120 mph and rebound velocities were 1/3 to 1/2 of that of the initial speed. Additional impact tests were conducted on equivalent flat helmet sections backed by a rigid steel plate, the results of which seemed to indicate that the materials and configurations currently employed do little to dissipate the energy of the striker. Head accelerations in excess of 1,000 G were measured, but quantitative injury potential could not be assessed since no applicable tolerances currently exist. We concluded that the incorporation of additional external padding on the plastic shell of the helmet and/or modifications of the suspension would significantly improve the energy absorption capabilities of the helmet and further minimize the possibility of head trauma.
进行了一项实验，以确定市售棒球头盔在模拟击球手头部被击中的环境中的有效性。使用压缩空气炮，在有头盔和没有头盔的情况下，将棒球射向装有仪器的头模的正面和颞部位置。撞击速度范围为50至120英里/小时，反弹速度为初始速度的1/3至1/2。对由刚性钢板支撑的等效扁平头盔部分进行了额外的冲击测试，其结果似乎表明，目前使用的材料和结构在消散击球者能量方面作用不大。测量到头部加速度超过1000G，但由于目前不存在适用的公差，无法评估定量的受伤可能性。我们得出结论，在头盔的塑料外壳上加入额外的外部衬垫和/或对悬架进行改进，将显著提高头盔的能量吸收能力，并进一步降低头部受伤的可能性。
