著作: 播 愛武/賀 菊方/[木内 陽介]/[山口 久雄]/宮本 博司/Blood flow of the carotid artery during breath-holding in relation to diving bradycardia/[European Journal of Applied Physiology and Occupational Physiology]
ヘルプを読む
「著作」（著作（著書，論文，レター，国際会議など））は，研究業績にかかる著作（著書，論文，レター，国際会議など）を登録するテーブルです． (この情報が属するテーブルの詳細な定義を見る)
- 項目名の部分にマウスカーソルを置いて少し待つと，項目の簡単な説明がツールチップ表示されます．
編集する
複製して登録
削除する
|
|||||
| 種別 | 必須 | 学術論文(審査論文) | |||
|---|---|---|---|---|---|
| 言語 | 必須 | 英語 | |||
| 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)) | |||
| 学究種別 | 推奨 | ||||
| 組織 | 推奨 | ||||
| 著者 | 必須 | ||||
| 題名 | 必須 |
(英) Blood flow of the carotid artery during breath-holding in relation to diving bradycardia |
|||
| 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. |
|||
| キーワード | 推奨 |
|
|||
| 発行所 | 推奨 | ||||
| 誌名 | 必須 |
European Journal of Applied Physiology and Occupational Physiology([Springer-Verlag])
(pISSN: 0301-5548)
|
|||
| 巻 | 必須 | 75 | |||
| 号 | 必須 | 5 | |||
| 頁 | 必須 | 388 395 | |||
| 都市 | 任意 | ||||
| 年月日 | 必須 | 1997年 1月 1日 | |||
| URL | 任意 | ||||
| DOI | 任意 | 10.1007/s004210050177 (→Scopusで検索) | |||
| PMID | 任意 | 9189724 (→Scopusで検索) | |||
| NAID | 任意 | ||||
| WOS | 任意 | ||||
| Scopus | 任意 | 2-s2.0-0030957989 | |||
| 評価値 | 任意 | ||||
| 被引用数 | 任意 | ||||
| 指導教員 | 推奨 | ||||
| 備考 | 任意 |
|
|||