초록 열기/닫기 버튼
To examine the effects of partial body cooling during intermittent exercise on body thermal regulatory and metabolic responses, 5 healthy men (20 yrs., 174.0?3.4 cm, 64.8?5.9 kg, 21.3?1.2 kg/m2) were recruited. They participated in two separate testings in a hot environment, in which they rested for 15 min followed by 15 min running, 5 min resting, 15 min running, 5 min resting, 15 min running, and 15 min recovery in 31?1oC, 60~70% relative humidity. The exercise intensity was fixed at 75% of individual VO2max. In one occasion, they rested in a bathtub in a recumbent position in 31oC air (heat treatment : HT) during the resting periods, and in another occasion, they rested in 15oC water (cold treatment : CT). During testings, rectal (Tre) and skin (Tsk) temperatures, metabolic responses, and blood parameters were measured. CT showed lower Tre and Tsk during resting and recovery periods in CT than HT. Blood lactate was lower during exercise and resting in CT than HT. It appears that partial body cooling during intermittent exercises may help reducing thermal and metabolic stress that may challenge exercise task.
키워드열기/닫기 버튼
Heat environment, Skin temperature, Rectal temperature, Lactate
