Investigation of cerebral hemodynamic alteration following dynamic aerobic exercise: an applied research project for analysis of regional cerebral blood flow using positron emission tomography
Project/Area Number |
16K01841
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Applied health science
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Research Institution | Aomori University (2018-2019) Hosei University (2016-2017) |
Principal Investigator |
Hiura Mikio 青森大学, 脳と健康科学研究センター, 教授 (10327918)
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Co-Investigator(Kenkyū-buntansha) |
成相 直 東京医科歯科大学, 大学院医歯学総合研究科, 准教授 (00228090)
石井 賢二 地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究部長 (10231135)
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Project Period (FY) |
2016-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | 脳血流量 / 有酸素運動 / 血圧変動 / 陽電子放出断層撮影 / 脳機能画像 / 陽電子放射断層撮影 / 脳血管自動調節能 / 神経画像 / 脳血流自動調節能 / 運動負荷 / 運動 / 血圧 / 脳・神経 / 生理学 / 陽電子放出断層撮像法 |
Outline of Final Research Achievements |
Alteration of regional cerebral blood flow during and following dynamic aerobic exercise has been investigated using positron emission tomography(PET). We investigated the associations between regional cerebral blood flow (rCBF) and increased blood pressure (BP) during exercise and decreased BP following the cessation of exercise. Our results demonstrated that large areas were related with rCBF and this finding was particularly eminent at the onset of exercise when the extent of increase in BP was large. However, when exercise continued, rCBF changed to the baseline level of the resting status in almost all of brain regions. In the present study, rCBF was investigated in conjunction with these changes in BP and cardiac output to explore the mechanism of regulating CBF during exercise.
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Academic Significance and Societal Importance of the Research Achievements |
本研究課題は脳に対する運動の影響を調べるために、実際の運動中の脳の局所血流量を陽電子放出断層撮影(positron emission tomography: PET)により解析した。一般的に脳血流量は血圧変動が生じた場合自動調節能により一定に保たれることが知られているが、実際には血圧変動を伴う有酸素運動中に血流量は脳の局所で20~50%程度増加し、終了後は10%程度減少することが明らかとなった。本研究により運動中の脳の血流量増加は神経可塑性などの有益な変化と関連し、運動後低血圧時の脳血流低下少なく脳虚血発作などのリスクとの関連は乏しいことが示唆された。
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Report
(5 results)
Research Products
(25 results)
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[Journal Article] Dynamic Exercise Elicits Dissociated Changes Between Tissue Oxygenation and Cerebral Blood Flow in the Prefrontal Cortex: A Study Using NIRS and PET.2018
Author(s)
(12).Hiura, M., Nariai, T., Takahashi, K., Muta, A., Sakata, M., Ishibashi, K., Toyohara, J., Wagatsuma, K., Tago, T., Ishii, K., Maehara, T.
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Journal Title
Adv Exp Med Biol. 2018 Aug 30;1072:269-274.
Volume: 1072
Pages: 269-274
DOI
ISBN
9783319912851, 9783319912875
Related Report
Peer Reviewed
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[Journal Article] Response of cerebral blood flow and blood pressure to dynamic exercise: A study using PET2018
Author(s)
Hiura, M., Nariai, T. Muta, A., Sakata, M., Ishibashi, K. Toyohara, J. Wagatsuma, K. Tago, T., Ishii, K. Maehara, T.
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Journal Title
International Journal of Sports Medicine
Volume: 39
Issue: 03
Pages: 181-188
DOI
Related Report
Peer Reviewed
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[Presentation] Redistribution of cerebral blood flow evoked by aerobic exercise is attributable to neuro-vascular coupling and cerebral autoregulation: A study using PET2018
Author(s)
Hiura, M., Nariai, T., Sakata, M., Muta, A., Ishibashi, K., Toyohara, J., Wagatsuma, K., Tago, T., Ishii, K., Maehara, T., Katayama, Y.
Organizer
Neuroscience 2018
Related Report
Int'l Joint Research
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[Presentation] Redistribution of cerebral blood flow evoked by exercise and cerebral autoregulation.2018
Author(s)
(69).(71).Hiura, M., Nariai. T., Sakata, M., Muta, A., Ishibashi, K., Wagatsuma, K., Tago, T., Toyohara, J. Ishii, K., Maehara, T., Katayama, Y
Organizer
第58回日本核医学回学術総会
Related Report
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[Presentation] Regional cerebral blood flow correlated with changes in blood pressure evoked by dynamic exercise: A study using oxygen-15-labeled water with PET.2017
Author(s)
Hiura, M., Sakata, M., Ishii, K., Ishibashi, K., Wagatsuma, K., Tago, T., Toyohara, J., Muta, A., Nariai, T.
Organizer
Brain 2017, Berlin
Related Report
Int'l Joint Research
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[Presentation] Cerebral blood flow during dynamic exercise ccorrelates with blood pressure in autonomic brain regions2017
Author(s)
Hiura, M., Muta, A., Sakata, M., Wagatsuma, K. Tago, T., Toyohara, J., Ishibashi, K., Ishii, K., Nariai, T.
Organizer
ACSM’s 64th Annual Meeting, Denver
Related Report
Int'l Joint Research
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[Presentation] Correlation between cerebral blood flow and blood pressure during and post exercise is presented in central autonomic network; A positron emission tomography study using oxygen-15-labeled water.2017
Author(s)
Hiura, M., Nariai, T. Sakata, M., Muta, A., Maehara, T. Ishibashi, K. Wagatsuma, K. Tago, T., Toyohara, J., Ishii, K
Organizer
22th Annual Congress of the ECSS, MetropolisRuhr
Related Report
Int'l Joint Research
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[Presentation] Dynamic exercise elicits dissociated changes between tissue oxygenation and cerebral blood flow in the prefrontal cortex: a study using NIRS and PET.2017
Author(s)
Hiura, M., Nariai, T. Takahashi, K. Muta, A., Sakata, M., T. Ishibashi, K. Toyohara, J. Wagatsuma, K. Tago, T., Ishii, K. Maehara, T.
Organizer
ISOTT 2017, Halle
Related Report
Int'l Joint Research
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[Presentation] Alteration of regional cerebral blood flow evoked by dynamic exercise among patients with ischemic cerebrovascular diseases; A Study using oxygen-15-labeled water with PET2017
Author(s)
Hiura, M., Nariai, T. Muta, A., Sakata, M., Ishibashi, K. Toyohara, J. Wagatsuma, K. Tago, T., Ishii, K. Maehara, T.
Organizer
40th ESNR Annual Meeting, Malmo
Related Report
Int'l Joint Research
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