<Originals>Effects of Different Intensity and Duration of Exercise with the Same Oxygen Consumption on the Ability of Neutrophils to Generate Superoxide Anion Radicals in Humans
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概要
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TOSHINAI, K., HAGA, S., MIYAZAKI, H., TAKEMASA, T., NOMURA, T., KIZAKI, T. and OHNO, H., Effects of Different Intensity and Duration of Exercise with the Same Oxygen Consumption on the Ability of Neutrophils to Generate Superoxide Anion Radicals in Humans. Adv. Exerc. Sports Physiol., Vol.6, No.3 pp91-95, 2000. The aim of this study was to investigate the effect of different intensity and duration of exercise with the same oxygen consumption on the ability of neutrophils to generate superoxide in humans. Six sedentary male stundents performed three sessions of eycle ergometer exercise with a load of 40% of maximal oxygen consumption (VO2max( (45 min). 60% VO2max (30min). 80%VO2max (22.5 min) after a VO2max test, accompained by blood-collecting at the start and end of each exercise and then 3.6. and 24 h later. The ability of neutrophils to generate superxide anion radecals (02), estimated by the intersity of chemiluminescence, increased significantly (P<0.05) at 0. 3. and 6 h after 60% VO2max similar to 80% VO2max exercise, but not after 40% VO2max exercise. The plasma levels of lipid preoxide (LPO) and thiobarbituric acid-reactive substances(TBARS), as indices of lipid peroxidation, were significantly increased at 3 and 6 h after the 60% VO2max and 80% VO2max test. In addition, since the VO2max test increased these parameter levels relatively more than any other exercise, it was suggested that their increases were associated with exercise intensity rather than exercise duration. However, no definite change was noted for plasuma uric acid concentration after any exercise. The changes in neutrophil activity. LPO and TBARS levels showed similar trends after the four kinds of exercise. These findings suggest that the ability of neutrophils to generate O2 may function as an index of extracellular oxidative stress.
- 日本運動生理学会の論文
著者
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HAGA Shukoh
Institute of Health and Sport Sciences, University of Tsukuba
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Haga Shukoh
Institute Of Health And Sport Sciences University Of Tsukuba
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Haga Shukoh
Institute Of Health & Sports Sciences University Of Tsukuba
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Toshinai Koji
Institute Of Health And Sport Sciences University Of Tsukuba
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Takemasa Tohru
Institute Of Health & Sports Sciences University Of Tsukuba
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Nomura Takeo
Institute Of Comprehensive Human Sciences University Of Tsukuba
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Miyazaki Hiromi
Institute Of Health And Sport Sciences University Of Tsukuba
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Miyazaki Hirom
Institute of Health and Sport Sciences, University of Tsukuba
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Miyazaki Hirom
Institute Of Health And Sport Sciences University Of Tsukuba
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Kizaki Takao
Department of Molecular Predictive Medicine, Kyorin University, School of Medicine
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Ohno Hedeki
Department of Molecular Predictive Medicine and Sport Science, Kyorin Uiversity, School of Medicine
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