Zoaktafi Mojgan, Choobineh Alireza, Rostami Matin, Kazemi Reza
Department of Ergonomics, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Basic Clin Neurosci. 2021 Nov-Dec;12(6):759-766. doi: 10.32598/bcn.2021.1773.1. Epub 2021 Nov 1.
This study sought to examine the effects of helmet weight on cognitive performance and mental workload. Twenty participants were studied in 3 one-hour sessions.
The study participants were requested to read and work with computers under the following 3 conditions: wearing no helmets, wearing a helmet that weighed 800 g (A), and a helmet weighing 1500 g (B). "N-back" task and Continuous Performance Test (CPT) were employed to assess cognitive performance. At the same time, NASA-TLX and Thermal Comfort and Fatigue Perception Scale were used to evaluate mental workload and comfort. At the end of the intervention sessions, perceived mental workload, thermal comfort, and fatigue in the head were measured. Moreover, the research participants' cognitive performance was gauged before and after the sessions.
The present study findings revealed that helmet weight significantly impacted cognitive performance (P<0.001). However, no significant difference was detected in the participants' mental workload before and after the intervention.
Helmet weight could affect cognitive performance. Therefore, in designing helmets, the helmet's weight should be considered an essential factor.
Helmet weight significantly impacted cognitive performance.The results showed that the perceived mental workload was not influenced by helmet weight.Designing helmets, the helmet's weight should be considered an essential factor.
This study examined the effect of helmet weight on brain performance. The results showed that the perceived mental workload was not influenced by helmet weight. However, brain performance declined as a result of wearing heavier helmets. Furthermore, the perceived local fatigue in the shoulders and neck increased after wearing heavier helmets. Thus, manufacturers should consider helmet weight while designing helmets and developing the relevant standards.
本研究旨在探讨头盔重量对认知表现和心理负荷的影响。对20名参与者进行了3次为时1小时的实验。
要求研究参与者在以下三种条件下阅读并使用电脑：不戴头盔、佩戴800克重的头盔（A）和佩戴1500克重的头盔（B）。采用“n-back”任务和连续性能测试（CPT）来评估认知表现。同时，使用美国国家航空航天局任务负荷指数（NASA-TLX）以及热舒适度和疲劳感知量表来评估心理负荷和舒适度。在干预实验结束时，测量头部的感知心理负荷、热舒适度和疲劳程度。此外，在实验前后对研究参与者的认知表现进行评估。
本研究结果显示，头盔重量对认知表现有显著影响（P<0.001）。然而，干预前后参与者的心理负荷没有显著差异。
头盔重量会影响认知表现。因此，在设计头盔时，应将头盔重量视为一个重要因素。
头盔重量对认知表现有显著影响。结果表明，感知心理负荷不受头盔重量影响。在设计头盔时，应将头盔重量视为一个重要因素。
本研究考察了头盔重量对大脑表现的影响。结果表明，感知心理负荷不受头盔重量影响。然而，佩戴较重的头盔会导致大脑表现下降。此外，佩戴较重的头盔后，肩部和颈部的局部疲劳感会增加。因此，制造商在设计头盔和制定相关标准时应考虑头盔重量。
