このエントリーをはてなブックマークに追加
ID 26001
本文ファイル
別タイトル
EFFECTS OF WATER INGESTION INTERVAL ON THERMOREGULATORY RESPONSES DURING EXERCISE IN A HOT, HUMID ENVIRONMENT
著者
高取 直志
小村 堯
キーワード
body temperature
evaporative sweat loss
water ingestion
prolonged exercise
NDC
医学
抄録(英)
During exercise at high temperatures, body temperature increases, impairing exercise performance and resulting in heat illnesses. Water ingestion during exercise is a simple and practical strategy to prevent hyperthermia. In the present study, we examined the effects of water ingestion interval on thermoregulatory responses during exercise in a hot, humid environment (32℃, 80% relative humidity). Eight male university students performed a 60-min cycling exercise (60% of the maximal O_2 uptake) under four separate conditions; no drinking (ND), water ingestion (mineral water) at 5 (D5), 15 (D15), and 30 (D30) min intervals. The total volume of water ingestion (TWI) was identical during D5, D15, and D30, and equal to the amount of fluid lost in sweat during ND. TWI was divided equally by the number of drinking times in each experiment. During exercise, both rectal and mean skin temperature were lower in D5 than those in the other conditions (p<0.05). There was no significant difference in total sweat loss between the four conditions, however, evaporative sweat loss and sweat efficiency (evaporative sweat loss/total sweat loss) were significantly (p<0.05) higher in D5 than those in the other conditions. These results suggest that the shorter water ingestion interval increases evaporative sweating and attenuates higher body temperature during exercise in a hot, humid environment.
掲載誌名
体力科学 : Japanese Journal of Physical Fitness and Sports Medicine
51巻
3号
開始ページ
317
終了ページ
324
出版年月日
2002-05-25
出版者
日本体力医学会
ISSN
0039-906X
NCID
言語
日本語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
日本体力医学会
本文データは学協会の許諾に基づきCiNiiから複製したものである
関連情報URL
部局名
総合科学研究科