Spirometric Standards for Healthy Male Lifetime Nonsmokers

Document Type

Article

Authors

R. T. Withers, The Exercise Physiology Laboratory, School of Education, The Flinders University of South Australia, Bedford Park, South Australia
P. C. Bourdon, The Exercise Physiology Laboratory, School of Education, The Flinders University of South Australia, Bedford Park, South Australia
A. Crockett, Respiratory Unit, Department of Medicine, Flinders Medical Centre, Bedford Park, South Australia

Abstract

The FVC, FEV_1.0, FEF_{25_ 75%}, and FEVM_1.0/FVC (%) were measured in 162 males aged 18.9-78.6 yr using a Stead-Wells spirometer. Multiple regression equations were generated to predict these lung parameters from the best weighted combination (p < 0.05) of age, standing height, sitting height, biacromial breadth, and chest expansion (FVC: R = 0.843, SEE = 513 ml BTPS; FEV_1.0: R = 0.850, SEE = 436 ml BTPS; FEF_{25_ 75%}: R = 0.665, SEE = 997 ml/s BTPS; FEV_1.0/FVC: R = 0.537, SEE = 4.95%). The lower limit of normality was defined as the predicted value minus the 95% confidence interval (one-tailed test). Cross-validation of other FVC, FEV_1.0, and FEF_25-75% equations in the literature indicate that all the FVC and FEV_1.0 ones are unsuitable for the sample and instrumentation used in this investigation.

Recommended Citation

Withers, R. T.; Bourdon, P. C.; and Crockett, A. (1989) "Spirometric Standards for Healthy Male Lifetime Nonsmokers," Human Biology: Vol. 61: Iss. 3, Article 3.
Available at: https://digitalcommons.wayne.edu/humbiol/vol61/iss3/3