Influence Of Smoking And Physical Activity On Pulmonary Function

Abstract

The purpose of this study was to examine the influence of smoking and physical activity on lung function. There were used the research method of three groups: smokers, non-smokers and sportsmen. Nine spirometric variables were used to evaluate the pulmonary function and differences between groups. Significance of the differences was tested by ANOVA and Canonical Discriminant Analyses. Sportsmen had significantly higher values of forced expiratory volume in 1 st second and expiratory vital capacity, whereas the smokers lower. Non-smokers and sportsmen had similar lung capacity, but better than smokers. Factor Analyses had revealed two latent factors. The first factor explained 64.9% of the total variance and inform about lung capacity. The second factor explained 12.96% of the total variance and inform about air-flowing during respiration. The differences between groups in latent structure were significant. This investigation revealed the effects of smoking and physical activity on decreasing, respectively increasing of respiratory abilities.