定常負荷運動との比較による負荷自己選択法を用いた運動中の安全性の検討

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The safety of cardiorespiratory function is an accentuated factor in exercise prescription for improvement of physical fitness. When regulating exercise intensity using a self-selected exercise intensity (SSEI) method, it is important to not only consider responses in cardiorespiratory function but also the safety of exercise intensity. In this study, therefore, we compared changes in cardiorespiratory function during exercise at anaerobic threshold (AT) and by the SSEI method. In addition, we attempted to acquire new information regarding the safety of the SSEI method. Group 1 consisted of 28 healthy men, aged 25.5±2.7 years, who completed two 20-min exercise trials. During the first trial, participants performed cycling for 20min by the SSEI method (SS-trial). The second trial consisted of 5min of fixed-load cycling at 70% (high intensity) of Vo_2max (SSFL_<70%>) followed by 15min of cycling at SSEI. Group 2 consisted of 10 healthy men (25.0±1.8 years) who completed two 20-min exercise trials at AT (AT-trial) and Above AT (AbAT-trial). Oxygen uptake during the SS-trial increased to the same level as that during the AT-trial. However, it was noteworthy that the exercise intensity selected by each subject was maintained at approximately 65%Vo_2max during SSFL_<70%>. These data suggest that a constant-load exercise relative to AbAT level can be sustained for a prolonged period of time without inducing a marked risk for the cardiorespiratory system.
社団法人日本体育学会の論文
2006-07-10

定常負荷運動との比較による負荷自己選択法を用いた運動中の安全性の検討

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