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ウエダ ヒロユキ
ueda hiroyuki
上田 博之 所属 大阪信愛学院大学 看護学部 看護学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2005/07 |
| 形態種別 | 研究論文（学術雑誌） |
| 査読 | 査読あり |
| 標題 | Effects of physical training on heat loss responses of young women to passive heating in relation to menstrual cycle |
| 執筆形態 | 指定なし |
| 掲載誌名 | EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY |
| 出版社・発行元 | SPRINGER |
| 巻・号・頁 | 94(4),pp.376-385 |
| 著者・共著者 | T Kuwahara,Y Inoue,M Taniguchi,Y Ogura,H Ueda,N Kondo |
| 概要 | To examine the effects of physical training on cutaneous vasodilation and sweating responses of young women in the follicular and luteal phase, 11 physically trained (T group) and 13 untrained (U group) women were passively heated by lower-leg immersion into hot water of 42 degrees C (ambient temperature of 30 degrees C and 45% RH) for 60 min in their mid-follicular and mid-luteal phases of the menstrual cycle. Female hormones increased significantly from the mid-follicular to the mid-luteal phase in T and U groups, but the degree of increase was significantly lower in T group. Mean body temperature ((T) over bar (b)) thresholds for cutaneous vasodilation and sweating responses were significantly lower in T group than in U group, in both the menstrual phases, and the differences between the groups were greatest during the mid-luteal phase. The slope of the relationship between frequency of sweat expulsion (F-sw) and (T) over bar (b), and between local sweating rate and Fsw was significantly greater in T group, although the slope of the relationship between cutaneous blood flow and (T) over bar (b) did not differ between the groups, regardless of body site or menstrual phase. These results suggest that regular physical activity enhanced sweating and cutaneous vasodilation in young women. The enhancement of sweating was due to both central and peripheral mechanisms, and the enhancement of cutaneous vasodilation was possibly due to a central mechanism. Enhancement of heat loss responses via central mechanisms was greater during the mid-luteal phase than in the mid-follicular phase because the elevation of female reproductive hormone levels during the mid- luteal phase was relatively low in T group. |
| DOI | 10.1007/s00421-005-1329-0 |
| ISSN | 1439-6319 |