소방용 보호장구 착용시 주위온도변화에 따른 신체반응

Physiological Responses of Human Body Wearing Fire Fighting Equipment by Surrounding Temperature Change

본 연구에서는 소방용 보호장구 착용시 온도변화에 따른 신체반응을 연구하여 소방공무원의 안전을 위한 기초자료 제공을 목적으로 제공을 목적으로 한다. 연구결과 평균피부온도는 WBGT <TEX>$25^{\circ}C$</TEX>에서 약 <TEX>$1.3^{\circ}C$</TEX>, WBGT <TEX>$30^{\circ}C$</TEX>에서 약 <TEX>$1.5^{\circ}C$</TEX> 상승하였다. 최대산소섭취량은 WBGT <TEX>$25^{\circ}C$</TEX>의 경우 <TEX>$49.1{\pm}3.94ml/kg/min$</TEX>, WBGT <TEX>$30^{\circ}C$</TEX>의 경우는 <TEX>$59.7{\pm}4.88ml/kg/min$</TEX>로서 WBGT <TEX>$30^{\circ}C$</TEX>의 경우가 약 21.6% 높게 나타났으며 통계적으로 유의하게 나타났다(p<.05). 대사당량은 WBGT <TEX>$25^{\circ}C$</TEX>의 경우 <TEX>$14.0{\pm}1.13METs$</TEX>, WBGT <TEX>$30^{\circ}C$</TEX>의 경우 <TEX>$17.1{\pm}1.39METs$</TEX>로서 대사당량은 약 22.1% 높게 나타났으며, 통계적으로 유의하게 나타났다(p<.05). 체중감소는 WBGT <TEX>$25^{\circ}C$</TEX>의 경우 <TEX>$0.48{\pm}0.39kg$</TEX>, WBGT <TEX>$30^{\circ}C$</TEX>의 경우 <TEX>$0.70{\pm}0.24</TEX><TEX>kg$</TEX>로서 약 45.8% 증가하였으나 통계적으로 유의하지는 않았다(p>.05).

The aim of study intends to investigate the physiological responses of human body wearing fire fighting equipment by surrounding temperature change and to provide the base data for the safety of firefighter. Mean skin temperature rose by <TEX>$1.3^{\circ}C$</TEX> under WBGT <TEX>$25^{\circ}C$</TEX> and <TEX>$1.5^{\circ}C$</TEX> under WBGT <TEX>$30^{\circ}C$</TEX>. The maximum oxygen consumption increased 21.6% in WBGT <TEX>$30^{\circ}C$</TEX>(<TEX>$59.7{\pm}4.88ml/kg/min$</TEX>) case than case of WBGT <TEX>$25^{\circ}C$</TEX>(<TEX>$49.1{\pm}3.94ml/kg/min$</TEX>) and the results are statistically significant. The metabolic equivalent increased 22.1% in WBGT <TEX>$30^{\circ}C$</TEX>(<TEX>$17.1{\pm}1.39METs$</TEX>) case than case of WBGT <TEX>$25^{\circ}C$</TEX>(<TEX>$14.0{\pm}1.13METs$</TEX>) and the results are statistically significant. The weight loss increased 45.8% in WBGT <TEX>$30^{\circ}C$</TEX>(<TEX>$0.70{\pm}0.24kg$</TEX>) case than case of WBGT <TEX>$25^{\circ}C$</TEX>(<TEX>$0.48{\pm}0.39kg$</TEX>). It was concluded that physiological responses of human body varied considerably and reflected the differences in external heat load.