Abstract We assessed the effect of wearing a junior-high-school helmet when the frontal or lateral part of a helmet impacted the upper part and lower part of the A-pillar of a vehicle at 35 km/h (212 J). The head injury criterions (HICs) of the headform impactor without a helmet were respectively 4530 and 4937. In the case of the headform impactor wearing a junior-high-school helmet, the helmet reduced the HIC by 17.5 % and 9.9 % for impacts of the frontal part of the helmet and by 15.0 % and 4.0 % for impacts of the lateral part of the helmet. We also assessed the effect of wearing a junior-high-school helmet when the frontal part of the helmet impacted a road surface from a height of 1.5 m (66 J). The HIC of the headform impactor without a helmet was 6525. The HIC was reduced by 82.7 % when wearing a junior-high-school helmet. Both experiments show that, under a relatively low impact energy condition such as a road surface impact, wearing a junior-highschool helmet greatly reduces the head injury level. Meanwhile, under a relatively high-impact-energy condition such as impact against an A-pillar, wearing a junior-high-school helmet is ineffective in reducing the head injury level.


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    Titel :

    Reduction in the Head Injury Level due to Junior High School Cyclists Wearing Helmets


    Beteiligte:
    Matsui, Yasuhiro (Autor:in) / Oikawa, Shoko (Autor:in)


    Erscheinungsdatum :

    2018




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Klassifikation :

    BKL:    55.20$jStraßenfahrzeugtechnik / 55.20 Straßenfahrzeugtechnik



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