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Thermophysiological Responses of Wearing Safety Hat for Working at a Hot Environment  

박소진 (경북대학교 생활과학대학 의류학과)
김희은 (경북대학교 생활과학대학 의류학과)
Publication Information
Journal of the Korean Society of Clothing and Textiles / v.26, no.1, 2002 , pp. 74-82 More about this Journal
Abstract
The present study is aimed to investigate the effect of the safety hat on the balance of body temperature by observation of the physiological response under hot working environment. The experiment was carried out in a climate chamber of 3$0^{\circ}C$, 50%RH for 70 minutes. To compare the two kinds of safety hat, 5 healthy male subjects worn safety hat without hole (called 'without hole') or safety hat with hole (called 'with hole') according to a randomized cross-over design. The main results of this study are as fellows: Rectal temperature and heart rate were significantly lower level in 'with hole'than in 'without hole'. The mean skin temperature was significantly higher in 'without hole'than in 'with hole'. Blood pressure were significantly low in 'with hole'. Sweat rate which was measured by weight loss before and after experiment was higher in 'without hole'. In subjective ratings, subjects replied more hot, more uncomfortable and more wet, they felt more fatigue in condition of 'without hole'. Work ability which was measured by a grip strength dynamometer was higher in 'with hole'. Safety hat which can be used for safety of the brain in work place is meaningful device of behavioral thermoregulatory response under the hot working environment. The safety hat which is designed for proper ventilation and hygiene can maintain the homeostasis of body temperature by releasing body temperature efficiently.
Keywords
thermophysiological response; safety hat; hot environment; rectal temperature; homeostasis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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