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젊은 정상성인의 비운동 VO2max 추정식

Non-Exercise VO2max Estimation for Healthy Young Adults

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참고문헌

주제분류물리치료학

초록

Abstract

The purpose of this study was to produce the regression equation from non-exercise VO2max of healthy young adults and to develop a maximal oxygen consumption (VO2max) regression model. This model was based on heart rate non-exercise predictor variables (rest heart rate, maximal heart rate/rest heart rate), as an extra addition to the general regression which can reflect an individual's inherent or acquired cardiorespiratory fitness. The subjects were 101 healthy young adults aged 19 to 35 years. Exercise testing was measured by using a Balke protocol for treadmill and indirect calorimetry. The prediction equation was analyzed by using stepwise multiple regression procedures. The mean of VO2max was 39.02±6.72 ㎖/㎏/min (mean±SD). The greatest variable correlated to VO2max was %fat. The predictor variable used in the non-exercise VO2max included %fat, gender, habitual physical activity and HRmax/HRrest. The non-exercise VO2max estimation was as follows: VO2max(㎖/㎏/min)=55.58-.41(%fat)+.59(physical activity rating)-2.69(HRmax/HRrest)-5.36 (male=0, female=1); (R=.85, SEE=3.64, R2=.72: including heart rate variable); VO2max(㎖/㎏/min)= 48.47-.41(%fat)+.45(physical activity rating)-5.12 (male=0, female=1); (R=.84, SEE=3.74, R2=.70: with the exception of heart rate variable). As an added heart rate variable, there was only a 2% coefficient of determination improved. Therefore, these results demonstrated that heart rate variable correlation with a non-exercise regression model was very low. In conclusion, for healthy young korean adults, those variables that can affect non-exercise VO2max estimation turned out to be only % fat, gender, and physical activity. We suggest that further research of predictor variables for non-exercise VO2max is necessary for different patient groups who cannot perform maximal exercise or submaximal exercise.

참고문헌 (23)

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