| Project/Area Number |
26650175
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied anthropology
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| Research Institution | Doshisha University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
北條 達也 同志社大学, スポーツ健康科学部, 教授 (40298740)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 全身的協関 / 機能的潜在性 / 低温 / 低酸素 / 環境適応 / 持続的低酸素 / 換気抑制 / ホルモン / 呼吸調節 |
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| Outline of Final Research Achievements |
We designed three experiments to investigate the linkage among respiration, circulation and thermoregulation during combined cold and hypoxic exposures. First, combined cold intermittent hypoxic (IH) exposures in ventilatory responses with normal temperature (34deg) and low temperature (11deg) was designed. At 34deg, IH induced long-term facilitation of ventilation (vLTF) was remarkable observed during isocapnic condition. A significantly reduction in body temperature at 11deg was related to the augmented VE during isocapnic IH (p<0.01). Secondly, we investigated effect of repeated cold exposure to depressed hypoxic ventilatory decline (HVD) and the secretion of noradrenalin (NAd). Repeated cold stimulus promoted the secretion of NAd, HVD was significantly depressed compared to 1st hypoxia. Third, we investigated that the characteristics of athlete in vLFT during the IH exposure. The athlete showed a significantly greater vLTF compared to the untrained individuals.
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