2010 Fiscal Year Final Research Report
A relationship between an enhanced sensitivity of cutaneous vasodilation response to an increase in esophageal temperature and a component synchronizing with cardiac cycle in skin sympathetic nerve activity after heat acclimation in humans.
Project/Area Number |
21700653
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Sports science
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Research Institution | Shinshu University |
Principal Investigator |
KAMIJO Yoshi-Ichiro Shinshu University, 大学院・医学系研究科, 助教 (40372510)
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Project Period (FY) |
2009 – 2010
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Keywords | 圧反射性皮膚血管拡張 |
Research Abstract |
It is well known that plasma volume (PV) expansion induced by heat acclimation enhances cutaneous vasodilation in hyperthermic humans. On the other hand, we have found that there was a component synchronizing with cardiac cycle in 1.1-1.3s latency after a given R-wave, which increased with the increase in esophageal temperature, and the increase was significantly suppressed by hypovolemia. In the present study, we have proved that an increase in the synchronizing component in hyperthermia was enhanced by PV expansion with heat acclimation, and the enhancement might be associated with an enhancement of cutaneous vasodilation in hyperthermia after heat acclimation.
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Research Products
(14 results)
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[Presentation] Sympathetic vasoconstrictor responsiveness is reduced by 5-day endurance training with enhanced baroreflex sensitivity in men.2009
Author(s)
岡崎和伸, 上條義一郎, 増木静江, 池川茂樹, 岡田芳幸, Yazawa D, Hata T, Shiba Y, Takahashi M, Ikeda U, 能勢博
Organizer
The XXXVI International Congress of Physiological Sciences
Place of Presentation
Kyoto, Japan
Year and Date
20090728-20090801
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