Dulciane Nunes Paiva
Graduate Stricto Sensu in Health Promotion,Brazil
Title: The influence of active and passive smoking on the cardiorespiratory fitness of adults
Biography
Biography: Dulciane Nunes Paiva
Abstract
Background: Cardiorespiratory impairment increases morbidity and is an independent predictor of all-cause mortality, where it reduced by the inhalation of cigarette smoke. However, the effects of passive smoking on cardio respiratory fitness are rarely addressed. Objective: To analyze the influence of active and passive smoking on cardiorespiratory responses in asymptomatic adults during a sub-maximal-exertion incremental test. Methods: The participants (n=43) were divided into three different groups: Active smokers (n=14; aged 36.5±8 years), passive smokers (n=14; aged 34.6±11.9 years) and non-smokers (n=15; aged 30±8.1 years). They all answered the Test for Nicotine Dependence and underwent anthropometric evaluation, spirometry and ergospirometry according to the Bruce Treadmill Protocol. Results: Maximum consumption of oxygen (VO2 max) differ statistically among active and non-smokers groups (p=0.03), however, there was no difference between the passive and active smokers groups (p=0.88). Negative and significant correlations occurred between VO2max and age (r=-0.31, p=0.03), percentage of body fat (r=-0.44, p=0.01), and waist circumference (WC) (r=-0.46, p=0.01). Conclusion: VO2 max was significantly higher in non-smokers compared to active smokers and decreased with increasing age, percentage of body fat and WC.