Norman R W, Bishop P J, Pierrynowski M R
Can J Appl Sport Sci. 1980 Dec;5(4):208-14.
A sample of new ice hockey face masks was struck over the nose or eye of a headform by pucks shot at velocities of 11-39 m/s (25-87 m.p.h.). Deformation of the masks was studied from high speed film. Acceleration pulses transmitted to the center of gravity of the headform were recorded. Peak accelerations never exceeded 86 G's and were well below reported concussion thresholds (200 G's). The film showed contact of the mask or puck with the face at puck velocities of 28 m/s (60 m.p.h.) and above. These results indicate a somewhat lower "safe" puck impact velocity (28 m/s) than that stated by the Canadian Standards Association (32 m/s) under the standard which applied to these masks. Some boys 12 years and older can shoot pucks at 28 m/s (60 m.p.h.). We urge that all manufacturers of sports protective equipment incorporate state of the science, quantitative evaluations of their products, beyond minimum CSA standard testing, in their design programs to improve the quality of information transmitted to the public.
一组新的冰球面罩样品被以11 - 39米/秒(25 - 87英里/小时)的速度射出的冰球击中头模的鼻子或眼睛部位。通过高速拍摄的影片研究面罩的变形情况。记录传递到头模重心的加速度脉冲。峰值加速度从未超过86G,远低于报告的脑震荡阈值(200G)。影片显示,当冰球速度达到28米/秒(60英里/小时)及以上时,面罩或冰球与面部发生接触。这些结果表明,与适用于这些面罩的标准中加拿大标准协会规定的“安全”冰球撞击速度(32米/秒)相比,“安全”速度略低(28米/秒)。一些12岁及以上的男孩能以28米/秒(60英里/小时)的速度射出冰球。我们敦促所有运动防护装备制造商,在其设计方案中纳入科学水平的、对其产品的定量评估,而不仅仅是最低的加拿大标准协会标准测试,以提高向公众传达的信息质量。