水中運動前の水分補給がその後の運動と生体反応に及ぼす影響について

抄録

The aim of this paper is to investigate the effect on the physiological response of fluid ingestion before walking in a swimming pool. Nine healthy students were candidates for this study. First of all, they were divided into two groups water ingestion (W(+))(300Ml) before pool walking group and no water drinking (W(-)) beforehand. Body temperature was measured in the tympanic space and venodilation was measured in the fingers. Walking conditions were 3 km/h for 1,750 m in an indoor pool with a water temperature of 29.7±0.5°C, at a room temperature of 25.4±1.4°C and relative humidity of 79.4±4.3%. The pool was 25 m in length and 1.0 m deep. The following results were obtained: The values for tympanic temperature in the W(-) group were significantly higher than that of pre-walking (p<0.05). Vasodilation of the veins in the fingers significantly expanded in the group of W(+)(p<0.05). The values of systolic blood pressure(SBP) in the W(-) group decreased significantly in comparison partially (p<0.05).
We could conclude that fluid ingestion before walking in a swimming pool has a good effect on tympanic temperature, venous dilation and systolic blood pressure.