Evaluation of Exercise Capacity by Expired Gas during Cardiopulmonary Exercise Testing

In order to confirm the reliability of evalution of exercise capacity by analyzing expired gas, 17 healthy university students performed the cardiopulmonary exercise testing. Followed by a 2-min rest and 2-min warm-up (30 watt/min), subjects underwent the bicycle ergometer exercise with ramp loading...

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Published inRigaku ryoho kagaku Vol. 10; no. 2; pp. 93 - 95
Main Authors NARA, ISAO, FUJIMURA, MASAHIKO
Format Journal Article
LanguageEnglish
Published The Society of Physical Therapy Science 1995
Subjects
anaerobic threshold
cardiopulmonary exercise testing
maximal oxygen uptake (VO2max)
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ISSN1341-1667
2434-2807
2434-2807
DOI10.1589/rika.10.93

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Abstract In order to confirm the reliability of evalution of exercise capacity by analyzing expired gas, 17 healthy university students performed the cardiopulmonary exercise testing. Followed by a 2-min rest and 2-min warm-up (30 watt/min), subjects underwent the bicycle ergometer exercise with ramp loading of 15 watt/min. During the exercise, oxygen uptake (VO2), carbon dioxide production (VCO2) and minute ventilation (VE) breath by breath were continously measured. Anaerobic threshold (AT) was also determined by the Wasserman's V-slope method during the exercise. There was a significant correlation between VO2max and AT, and between HRmax and HRAT. AT was found 56.2% of VO2max. These results suggest that evaluation of exercise capacity by expired gas during cardiopulmonary exercise testing is useful.
AbstractList In order to confirm the reliability of evalution of exercise capacity by analyzing expired gas, 17 healthy university students performed the cardiopulmonary exercise testing. Followed by a 2-min rest and 2-min warm-up (30 watt/min), subjects underwent the bicycle ergometer exercise with ramp loading of 15 watt/min. During the exercise, oxygen uptake (VO2), carbon dioxide production (VCO2) and minute ventilation (VE) breath by breath were continously measured. Anaerobic threshold (AT) was also determined by the Wasserman's V-slope method during the exercise. There was a significant correlation between VO2max and AT, and between HRmax and HRAT. AT was found 56.2% of VO2max. These results suggest that evaluation of exercise capacity by expired gas during cardiopulmonary exercise testing is useful.
Author FUJIMURA, MASAHIKO
NARA, ISAO
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– reference: 3)張光哲・他:嫌気性代謝閾値をtargetとする運動負荷試験の検討．呼と循，32:503-509．1884．
– reference: 4)川越康博・他:慢性心不全における塩酸ブナゾシンの運動耐容能に対する効果．呼と循，40:1109-1114．992．
– reference: 1)山地啓司:最大酸素摂取量の科学．杏林書院，東京，1992．pp121-123．
– reference: 2)間嶋満:体力増強とその運動生理学的背景．PTジャーナル，25:156-159．1993．
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SubjectTerms anaerobic threshold
cardiopulmonary exercise testing
maximal oxygen uptake (VO2max)
Title Evaluation of Exercise Capacity by Expired Gas during Cardiopulmonary Exercise Testing
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