| Keywords |
Jjimjilbang(Korean sauna) ; Heat/cold exposure ; Heat/cold tolerance level ; Thermoregulation ; Environmental adaptability |
| Abstract |
The purpose of this study is to analyze the relationships between heat tolerance and cold tolerance resulting from continuous exposure to various jjimjilbang. 17 male subjects were participated for 26-weeks-jjimjil training and heat/cold tolerance test. Through the cluster analysis, we studied the changes of heat/cold tolerance level based on physiological values; Tre, ΔTre, Tsk, ΔTsk, TBWL, REE. Then the tolerance level of each subjects were examined to analyze the main effect (improved heat tolerance) and side effect (reduced cold tolerance) of jjimjil training. According to jjimjil training, the heat tolerance tends to improved (n=13) in rectal temperature, skin temperature and sweat rate (total body weight loss) especially in fire sudatorium-jjimjil group and lounge-rest group. And the cold tolerance tends to improved (n=12) in rectal temperature, skin temperature and resting energy expenditure (resting metaboilc rate) especially in ice room-rest group. So, we identified that according to proper jjimjil training, heat tolerance can be improved without reduced their own cold tolerance. It means jjimjil training in this study is generally enough stimulation for promoting heat tolerance, and jjimjil training method including intensity of temperature stimulation, exposure time, resting method and seasonal effect should be considered for proper jjimjil training recommendations. |