EFFECTS OF ENDURANCE TRAINING ABOVE THE ANAEROBIC THRESHOLD ON ISOCAPNIC BUFFERING PHASE DURING INCREMENTAL EXERCISE IN MIDDLE-DISTANCE RUNNERS
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概要
- 論文の詳細を見る
A study was performed to clarify the effects of endurance training above the anaerobic threshold(AT)on the isocapnic buffering phase during incremental exercise in athletes. Eight middle-distance runners aged 19.6±1.2 years performed incremental exercise testing with a modified version of Bruce's protocol. After a 6-month high-intensity interval and paced running training at levels above AT, maximal oxygen uptake(VO_2max)(ml・kg^<-1>・min^<-1>)was significantly increased from 60.1±5.7 to 64.7±5.5(p<0.05). AT(m・1kg^<-1>・min^<-1>)was slightly but significantly increased from 28.2±3.5 to 29.6±4.3(p<0.05). The respiratory compensation point(RC)(ml・kg^<-1>・min^<-1>)was markedly increased from 53.0±8.3 to 57.7±8.2(p<0.05). Although neither the slope of the first regression line below AT(S1)nor that of the second line above AT(S2) calculated by V-slope analysis was altered, the range of isocapnic buffering(ml・kg^<-1>・min^<-1>)from AT to RC was significantly extended from 24.8±5.9 to 28.1±6.0 after the 6-months of training(p<0.05). In addition, the amount of change in VO_2max after the 6-month of training period(ΔVO_2max)was correlated with Δisocapnic buffering(R=0.72, p<0.05). We conclude that the degree of increased respiratory compensation point is larger than that of AT after high-intensity endurance training at levels above AT, and that the range of isocapnic buffering may be an important factor in relation to the increase in the maximal aerobic capacity of athletes.
- 日本体力医学会の論文
- 1998-02-01
著者
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Miyamoto Tadayoshi
大阪市立大学
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Miyamoto Tadayoshi
Department Of Cardiovascular Dynamics National Cardiovascular Center Research Institute
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OSHIMA Yoshitake
Omron Institute of Life Science Co., Ltd.
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OSHIMA YOSHITAKE
大阪市立大学保健体育科研究室
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TANAKA SHIGEHIRO
大阪市立大学保健体育科研究室
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WADAZUMI TSUYOSHI
大阪市立大学保健体育科研究室
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KURIHARA NAOTSUGU
大阪鉄道病院呼吸器内科
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FUJIMOTO SHIGEO
大阪市立大学保健体育科研究室
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Oshima Yoshitake
Omron Institute Of Life Science Co. Ltd.
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Miyamoto Tadayoshi
Institute Of Health Science And Physical Education Osaka City University
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Fujimoto Shigeo
大阪市立大学 医学研究科運動生体医学
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Fujimoto Shigeo
大阪市立大学大学院医学研究科 運動生体医学
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Tanaka Shigehiro
School Of Letters Department Of Health And Sports Sciences Mukogawa Women's University
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Tanaka Shigehiro
Department Of Health And Sports Sciences Mukogawa Women's University
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Kurihara Naotsugu
First Department Of Internal Medicine Osaka City University Medical School
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Fujimoto S
Department Of Sports Medicine Osaka City University Graduate School Of Medicine
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Kurihara N
First Department Of Internal Medicine Osaka City University Medical School
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