http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Titis Wijayanto,Valentina Kunti Bratadew,Ghani Furqon Abdul Rahma,Moony Sinawang,Harendra Surya Prakasa 대한산업공학회 2019 Industrial Engineeering & Management Systems Vol.18 No.4
It has been reported that internal precooling via fluid ingestion is useful for hyperthermia prevention during exercise;however, its application in the occupational setting is unclear. This study aims to compare the effect of pre-coolingusing cold fluid and crushed ice ingestion on thermoregulatory responses during simulated occupational activity in ahot and humid environment. Nine healthy males completed treadmill exercise for 30-min at an intensity of 65% ofpredetermined HRmax in a chamber set at 36.6±0.8ºC of air temperature and 72±6% of relative humidity. Before theexercise, they preceded ingested 7.5 ml kg-1 body mass of cold drink (4ºC), crushed ice (-2ºC), or mineral water(28ºC) for pre-cooling. Ingesting crushed ice before the activity significantly lowered the pre-activity tympanic temperature than the cold beverage. Also, crushed ice ingestion showed more significant effects in lowering heart rate andimproving heat sink at the post-activity phase compared to cold beverage ingestion. These findings suggest thatcrushed ice ingestion may be more practical to minimize physiological and subjective thermal strain during occupational activity than ingesting cold fluid.