タイトル | Validation of a dual-cycle ergometer for exercise during 100 percent oxygen prebreathing |
著者(英) | Ohlhausen, John H.; Wiegman, Janet F.; Webb, James T.; Pilmanis, Andrew A. |
著者所属(英) | NASA Johnson Space Center |
発行日 | 1992-01-01 |
言語 | eng |
内容記述 | A study has been designed to determine if exercise, while prebreathing 100 percent oxygen prior to decompression, can reduce the current resting-prebreathe time requirements for extravehicular activity and high altitude reconnaissance flight. For that study, a suitable exercise mode was required. Design considerations included space limitations, cost, pressure suit compatibility, ease and maintenance of calibration, accuracy of work output, and assurance that no significant mechanical advantage or disadvantage would be introduced into the system. In addition, the exercise device must enhance denitrogenation by incorporation of both upper and lower body musculature at high levels of oxygen consumption. The purpose of this paper is to describe the specially constructed, dual-cycle ergometer developed for simultaneous arm and leg exercise during prebreathing, and to compare maximal oxygen uptake obtained on the device to that obtained during leg-only cycle ergometry and treadmill testing. Results demonstrate the suitability of the dual-cycle ergometer as an appropriate tool for exercise research during 100 percent oxygen prebreathing. |
NASA分類 | MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT |
レポートNO | 92A35461 |
権利 | Copyright |
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