Nonshivering Thermoregulatory Responses in Trained Athletes: Effects of Physical Fitness and Body Fat.
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- YOSHIDA Tetsuya
- Department of Physiology, Kyoto Prefectural Univeristy of Medicine
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- NAGASHIMA Kei
- Department of Physiology, Kyoto Prefectural Univeristy of Medicine
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- NAKAI Seiichi
- Department of Physiology, Kyoto Prefectural Univeristy of Medicine
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- YORIMOTO Akira
- Department of Physiology, Kyoto Prefectural Univeristy of Medicine
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- KAWABATA Takashi
- Department of Physiology, Kyoto Prefectural Univeristy of Medicine
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- MORIMOTO Taketoshi
- Department of Physiology, Kyoto Prefectural Univeristy of Medicine
書誌事項
- タイトル別名
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- Nonshivering Thermoregulatory Responses
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抄録
We studied the difference of thermoregulatory responses between trained male athletes (TR, n=9) and untrained men (UT, n=7) during 60 min of cold exposure (15°C) without shivering, and examined the effects of physical fitness and body fat on these responses. Mean skin temperature (¯Tsk), esophageal temperature (Tes), and skin conductance (Kb) were similar between TR and UT, and heat production (¯M) for TR increased significantly during exposure at 15°C. The ¯M at 15°C correlated positively with maximal oxygen uptake and negatively with body fat (%BF), but not with Tes. The Kb correlated negatively with Tes and positively with ¯Tsk. The %BF also correlated negatively with Kb and ¯Tsk during exposure at 15°C, and the slope of %BF vs. ¯Tsk relationship was significantly steeper in TR than in UT. These results suggest that (1) body temperature is maintained by the reduction of skin conductance, and (2) heat insulation independent of body fat is enhanced in trained athletes during cold exposure without shivering.
収録刊行物
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- The Japanese Journal of Physiology
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The Japanese Journal of Physiology 48 (2), 143-148, 1998
一般社団法人 日本生理学会
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詳細情報 詳細情報について
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- CRID
- 1390001205043152256
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- NII論文ID
- 10008304365
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- NII書誌ID
- AA00691224
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- COI
- 1:STN:280:DyaK1czgtlyhtQ%3D%3D
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- ISSN
- 18811396
- 0021521X
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- NDL書誌ID
- 4514081
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- PubMed
- 9639549
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可