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Author Tanaka, Kiyoji ♦ Nobuta, Yosiji ♦ Hasegawa, Yohzoh
Source J-STAGE
Content type Text
Publisher Japan Society of Physiological Anthropology
Language English
Subject Keyword Torque auto-controlled system ♦ Feedback of photoelectric pulse ♦ Maximal oxy-gen uptake ♦ Anaerobic threshold ♦ Cross-validity
Abstract We have previously developed a unique and simple procedure for assessing cardiorespiratory fitness. The present investigation was conducted to evaluate whether an aerobic index determined by torque auto-controlled system with the feedback of photoelectric pulse could sufficiently approximate the cardiorespiratory fitness reprenented by anaerobic threshold (AT) and maximal oxygen uptake $(VO_{2}max).$ Analysis of the cross-sectional data indicated that the aerobic score (AS : K (WR/Wt)/HR ; where WR=mean work rate during 12-min cycling, Wt=weight, and HR=mean heart rate during 12-min cycing) determined by the torque auto-controlled system was significantly correlated with directly measured $VO_{2}@AT$ (r=0.922, 76males ; r=0.814, 34 females). Cross-validity of the predicted $VO_{2}max$ from the AS was significant and sufficiently high (r=0.949, 3lmales) for use in the general public. In addition, the effects of cycling or jogging training on the AS were longitudinally investigated on 17 females and I male. Major effects of the training were significant improvements in the AS, $VO_{2}max,$ and $VO_{2}@AT.$ Delta percentage change [(post-value---pre-value)/pre-value ; △%] in the AS was closely associated (r=0.718, 8 females) with △% in $VO_{2}@AT.$ It appears likely from the present investigation that information obtained through the use of our unique system (i.e.; the AS) could provide considerably reliable estimate of cardiorespiratory fitness in both males and females.
ISSN 02878429
Learning Resource Type Article
Publisher Date 1989-01-01
Journal The Annals of physiological anthropology(ahs1983)
Volume Number 8
Issue Number 1
Page Count 10
Starting Page 3
Ending Page 12


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