| ○種別 (必須): | □ | 学術論文 (審査論文)
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| ○言語 (必須): | □ | 英語
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| ○招待 (推奨): |
| ○審査 (推奨): |
| ○カテゴリ (推奨): |
| ○共著種別 (推奨): | □ | 国内共著 (徳島大学内研究者と国内(学外)研究者との共同研究 (国外研究者を含まない))
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| ○学究種別 (推奨): |
| ○組織 (推奨): | 1. | 徳島大学.工学部.電気電子工学科.電気電子システム講座
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| 2. | 徳島大学.医学部
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| 3. | 徳島文理大学
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| ○著者 (必須): | 1. | (英) Pan Aiwu (日) 播 愛武 (読) ぱん あいぶ
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| ○貢献度 (任意): |
| ○学籍番号 (推奨): |
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| 2. | (英) He Jufang (日) 賀 菊方 (読) が きくほう
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| ○貢献度 (任意): |
| ○学籍番号 (推奨): |
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| 3. | 木内 陽介
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| ○貢献度 (任意): |
| ○学籍番号 (推奨): |
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| 4. | 山口 久雄 ([徳島文理大学])
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| ○貢献度 (任意): |
| ○学籍番号 (推奨): |
| [継承] |
| 5. | (英) Miyamoto Hirosi (日) 宮本 博司 (読) みやもと ひろし
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| ○貢献度 (任意): |
| ○学籍番号 (推奨): |
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| ○題名 (必須): | □ | (英) Blood flow of the carotid artery during breath-holding in relation to diving bradycardia (日)
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| ○副題 (任意): |
| ○要約 (任意): | □ | (英) The present study investigated the mechanism of diving bradycardia. A group of 14 healthy untrained male subjects were examined during breath-holding either out of the water (30-33 degrees C), in heat-out immersion, or in whole-body submersion (27-29 degrees C) in a diving pool. Blood velocity, blood volume flow in the carotid artery, diastolic blood pressure and electrocardiogram were measured and recorded during the experiments. The peak blood velocity increased by 13.6% (P < 0.01) and R-wave amplitude increased by 57.1% (P < 0.005) when the subjects entered water from air. End-diastolic blood velocity (Ved) in the carotid artery increased significantly during breath-holding, e.g. Ved increased from 0.20 (SD 0.02) m.s-1 at rest to 0.33 (SD 0.04) m.s-1 (P < 0.001) at 50.0 s in breath-hold submersion to a 2.0-m depth. Blood volume flow in the carotid artery increased by 26.6% (P < 0.05) at 30 s and 36.6% (P < 0.001) at 40 s in breath-hold submersion to a 2.0-m depth. Diastolic blood pressure increased by 15.4% (P < 0.01) at 60 s during breath-holding in head-out immersion. Blood volume flow, Ved and diastolic blood pressure increased significantly more and faster during breath-holding in submersion than out of the water. There was a good negative correlation with the heart rate: the root mean square correlation coefficient r was 0.73 (P < 0.001). It was concluded that an increased accumulation of blood in the aorta and arteries at end-diastole and decreased venous return, caused by an increase in systemic peripheral resistance during breath-holding, underlies diving bradycardia. (日)
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| ○キーワード (推奨): | 1. | (英) Adult (日) (読)
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| 2. | (英) Blood Flow Velocity (日) (読)
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| 3. | (英) Blood Pressure (日) (読)
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| 4. | (英) Bradycardia (日) (読)
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| 5. | (英) Carotid Arteries (日) (読)
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| 6. | (英) Diving (日) (読)
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| 7. | (英) Humans (日) (読)
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| 8. | (英) Male (日) (読)
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| 9. | (英) Regional Blood Flow (日) (読)
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| 10. | (英) Respiration (日) (読)
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| ○発行所 (推奨): |
| ○誌名 (必須): | □ | European Journal of Applied Physiology and Occupational Physiology ([Springer-Verlag])
(pISSN: 0301-5548)
| ○ISSN (任意): | □ | 0301-5548
ISSN: 0301-5548
(pISSN: 0301-5548, eISSN: 1432-1025) Title: European journal of applied physiology and occupational physiologyTitle(ISO): Eur J Appl Physiol Occup PhysiolPublisher: Springer Science+Business Media (NLM Catalog)
(Scopus)
(CrossRef)
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| ○巻 (必須): | □ | 75
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| ○号 (必須): | □ | 5
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| ○頁 (必須): | □ | 388 395
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| ○都市 (任意): |
| ○年月日 (必須): | □ | 西暦 1997年 1月 1日 (平成 9年 1月 1日)
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| ○URL (任意): |
| ○DOI (任意): | □ | 10.1007/s004210050177 (→Scopusで検索)
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| ○PMID (任意): | □ | 9189724 (→Scopusで検索)
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| ○NAID (任意): |
| ○WOS (任意): |
| ○Scopus (任意): | □ | 2-s2.0-0030957989
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| ○評価値 (任意): |
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| ○指導教員 (推奨): |
| ○備考 (任意): | 1. | (英) Article.PublicationTypeList.PublicationType: Journal Article (日)
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| 2. | (英) Article.PublicationTypeList.PublicationType: Research Support, Non-U.S. Gov't (日)
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