본 연구의 목적은 최대하 대사변인을 이용하여 V̇O2max를 추정하고 타당도를 검증하는 것이다. 18~60세 남, 여 837명을 대상으로 추정집단(n=649)과 타당도 검증집단(n=188)으로 나누어 최대 운동부하검사의 3분과 6분 시점의 대사반응을 측정하였다. 추정집단을 대상으로 다중회귀분석을 실시하였다. 4개 모형 모두 높은 R값, 낮은 SEE, 낮은SEE%를 보였다(R=.75~.85, p<.01, SEE=±3.73~±4.75, SEE%=10.19~12.98, p<.01). 가장 좋은 모형 2개는 V̇O2max (ml/kg/min)=75.141-4.381(성별)-.250(6분HR)-.112(나이)-.414(체중)+.023(6분V̇O2)-.010(6분V̇CO2)+.097(3분HR)와,V̇O2max(ml/kg/min)=75.173-4.705(성별)-.169(6분HR)-.102(나이)-.409(체중)+.024(6분V̇O2)-.011(6분V̇CO2)이다. 타당도검증 결과에서도 4개 모형에서 측정된 V̇O2max와 추정된 V̇O2max 간에 유의한 상관관계가 나타났고(R=.62~.79,p<.01), 평균차 검증에서도 유의한 차이가 없었으며(.186

The purpose of this study is to predict V^̇O₂max with metabolic variables and to examine its validity. The subjects are consisted of 837 male and female subjects aged from 18 to 60, and we separated them into two groups randomly: 649 for sample group,188 for a cross-validation group. They went through maximal exercise testing, and we measured the metabolic responses in the end of the first(3 minute) and second stage(6 minute). To predict V^̇O₂max, we applied multiple regression analysis to the sample with stepwise method. All 4 models had high R value, low SEE, and low SEE%(R=.75~.85, p<.01, SEE=±3.73~±4.75,SEE%=10.19~12.98, p<.01). The best 2 models were 1. V^̇O₂max(ml/kg/min) = 75.141-4.381(gender)-.250(6-minute HR)-.112(age)-.414(weight)+.023(6-minute V^̇O₂)-.010(6-minute V̇CO2)+.097(3-minute HR) and 2. V^̇O₂max(ml/kg/min)=75.173-4.705(gender)-.169(6-minute HR)-.102(age)-.409(weight)+.024(6-minute V^̇O₂)-.011(6-minute V^̇CO₂). Cross-validation also showed correlation between predicted and measured VO2max(R=.62~.79, p<.01), and there was no significant difference (.186