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低酸素環境の運動時エネルギー代謝への影響 : 血中pHと血中乳酸濃度の変化
https://chukyo-u.repo.nii.ac.jp/records/9519
https://chukyo-u.repo.nii.ac.jp/records/9519617039a4-e90c-481e-ba38-1e32165d6e0d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004196730.pdf (638.2 kB)
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| Item type | [ELS]紀要論文 / Departmental Bulletin Paper_02(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-11-14 | |||||
| タイトル | ||||||
| タイトル | 低酸素環境の運動時エネルギー代謝への影響 : 血中pHと血中乳酸濃度の変化 | |||||
| タイトル | ||||||
| タイトル | Influence of Hypoxic Environment on the Energy Metabolism During Exercise : Changes in Blood pH and Lactate Concentration | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 雑誌書誌ID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00081735 | |||||
| 著者 |
松村, 嘉則
× 松村, 嘉則× 原田, 健× 塚中, 敦子× 松井, 信夫× MATSUMURA, Yoshinori× HARADA, Takeshi× TSUKANAKA, Atsuko× MATSUI, Nobuo |
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| 著者所属(日) | ||||||
| 中京大学 | ||||||
| 著者所属(日) | ||||||
| 中京大学大学院 | ||||||
| 著者所属(日) | ||||||
| 中京大学大学院 | ||||||
| 著者所属(日) | ||||||
| 中京大学 | ||||||
| 記事種別(日) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 原著論文 | |||||
| 記事種別(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Original Article | |||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Since it was found that metabolic alkalosis induced by sodium bicarbonate ingestion enhances lactate diffusion from muscle, we attempted to examine the effect of an hypoxic environment which causes respiratory alkalosis on the changes in blood pH and lactate accumulation by high intensity exercise. Six young male adult were employed. Each subject performed 3 exercise tests (Max, Hypoxia and Submax) on a bicycle ergometer. In the Max test, subjects performed incremental exercise until exhaustion under air. In the Hypoxia test, a similar test was carried out under low oxygen gas. In the Submax test, the work load was the same as in the Hypoxia test but under air. Blood sample were obtained before, immediately after and at , 1, 3, 5, 7, 10, 15, 20 and 30 min. after exercise. In the Hypoxia test subjects breathed 12% oxygen gas from 60min. before exercise until 30min. after exercise and additional samples were obtained before exercise. Mean power output in the Hypoxia test and Submax test was about 67% of the Max test. In the Max test, blood pH rapidly fell after exercise and rose towards the initial level thereafter, but it did not reach the initial level 30 min. after exercise. In the Hypoxia test, blood pH elevated slightly by breathing low oxygen gas before exercise , but fell sharply by exercise and returned to the pre-exercise level 30min. after exercise. In the Submax test, the fall and its recovery were slower than in the other tests. Plasma lactate concentration rose after exercise and fell thereafter similarly in both Max and Hypoxia tests without significant differences at any point. Changes in the Submax test were far less than in the other 2. Blood bicarbonate ion concentration declined significantly by exercise and elevated thereafter in each test, though changes in the Submax test were much smaller than in the other 2. In the Hypoxia test, bicarbonate concentration elevated before exercise and pre-exercise value and the value immediately after exercise were significantly higher than those in Max test. Difference of bicarbonate ion before and after exercise, i.e., Δ bicarbonate, tended to be greater in Hypoxia test than in the Max test, indicating greater H^+ efflux in the Hypoxia test. From these results, it may be concluded that under 12% oxygen inhalation maximal power output decreased to 67% of that under air, yet almost a similar blood lactate concentration was reached by this lessened exercise ; moreover, recovery from exercise-induced metabolic acidosis is facilitated by respiratory alkalosis due to low oxygen inhalatoin. | |||||
| 書誌情報 |
中京大学体育学論叢 en : Research journal of physical education Chukyo University 巻 39, 号 2, p. 111-119, 発行日 1998-03-17 |
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| 表示順 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 10 | |||||
| アクセション番号 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | KJ00004196730 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 02887339 | |||||
