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Kinetics of mixed venous CO2 pressure in incremental-load exercise
| Title: | Kinetics of mixed venous CO2 pressure in incremental-load exercise |
| Authors: | Yano, Tokuo Browse this author |
| Keywords: | mixed venous CO_2 pressure | | blood lactate | | stored CO_2 | | excess CO_2 |
| Issue Date: | 1997 |
| Publisher: | 日本生理人類学会 |
| Journal Title: | Applied human science : journal of physiological anthropology |
| Volume: | 16 |
| Issue: | 1 |
| Start Page: | 15 |
| End Page: | 18 |
| Abstract: | The purpose of the present study was to examine the kinetics of mixed venous CO_2 pressure (Pvco_2) in incremental-load exercise. Pvco_2 seemed to indicate a linear increase after a somewhat slow increase. CO_2 Store phase appearing in expiration of CO_2 (stored CO_2) was calculated from the data of 0_2 uptake (VO_2), CO_2 output (Pvco_2) and work rate. The stored CO_2 indicated a linear increase after a time delay. The stored CO_2 also significantly related to Pvco_2. When kinetics of Pvco_2 at light exercise intensity was supposed from stored CO_2, Pvco_2 seemed to indicate a linear increase with a time delay. Excessive expired CO_2 (excess CO_2) was calculated from the data of VO_2 and work rate. The excess CO_2 significantly related to the increase of blood lactate. The blood lactate seemed to start to increase at around 1080 kpm/min. In spite of this change, a linear increase of Pvco_2 was unchanged. This result was considered to be related to the excessive CO_2 expiration corresponding to the increase of blood lactate. Thus, within the present results and assumptions, it seemed that Pvco_2 indicated a linear increase with a time delay without the effect of lactate increase in incremental-load exercise. |
| Rights: | 日本生理人類学会. 本文データは学協会の許諾に基づきCiNiiから複製したものである. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/44220 |
| Appears in Collections: | 教育学院・教育学研究院 (Graduate School of Education / Faculty of Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 矢野 徳郎
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