THE DANGER OF DEHYDRATION AND HEATSTROKE IN THE WALKING OF MIDDLE-AGED AND ELDERLY PERSONS IN THE SUMMER(Proceedings of The 8^<th> Asian Federation of Sports Medicine Congress 2005 Tokyo)

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In this study, the danger of dehydration and heatstroke in a walkingevent in the summer was examined. Subjects were 64 males, 11 females, and the average age was 62.3±7.8 years old. The following were measured before and after 25km walking: body weight, blood pressure, heart rate, tympanic temperature, and fluid intake. WBGT in the walking event was 22.6℃ mean value. Time of the 25km walking was 5 hours 45 minutes, and the number of steps were 36,570±2,741 steps. The body weight loss by the walking was 1.36±0.57kg, 2.24±0.96%. This body weight loss rate increased with the age. The fluid intake was 1,327±608g, and sweat loss was 2,621±740g in the walking. The tympanic temperature after walking was 38.02±0.60℃, and increased 0.99±0.67℃ from before walking. In the walking of middle-aged and elderly persons in the summer, there is danger of dehydration and heatstroke, therefore enough water and salt intakes are necessary.
日本体力医学会の論文
2006-10-01