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정기제(Gih Jeh Jeong),김인기(In Ki Kim),윤혜정(Hye Jeong Yoon),김학근(Hak Geun Kim),이동환(Dong Hwan Lee),서화령(Hwa Ryoung Suh),김대현(Dae Hyun Kim),이병기(Byung Ki Lee),이중기(Choong Ki Lee),차승익(Seoung Ick Cha),박재용(Jae Yong P 대한내과학회 1997 대한내과학회지 Vol.52 No.1
N/A Objectives : The respiratory compensation threshold(RCT) is thought to be one of parameters by some for the evaluation of physical performance despite its controversial status. The purpose of this investigation is to establish the reference values of the RCT in healthy Korean adults, and to examine the usefulness of this parameter in evaluating physical performance. Methods: Symptom-limited maximal exercise test by Bruce protocol was carried out, and RCT and AT were determined by the aid of the computerized V-slope method, along with the VO2 max, in 441 healthy Korean adults consisting of 284 men and 157 women aged from 20`s to 60`s. In addition, correlation between RCT and AT was observed, and regression equations of the RCT were also derived. Results : The RCT VO2 was tended to decrease with age in men, but not in women and the RCT VO2 of women was 26-30% less than that of men. The ratio of RCT VO2 to VO2 max (RCT VO2/VO2 max) was tended to increase with age and the RCT V was significantly correlated with AT VC4 and VO2 max in both sexes. Conclusion: Our study reveals that the RCT is another useful submaximal index along with the AT in evaluating physical performance. The regression equation of the RCT was RCT VO2(L/min)=1.4232 - 0.0102 A(age in year)+0.0204 W(weight in kg) - 0.4889 S (sex, coded O for males and 1 for females).