Capacidade cardiorrespiratória em adultos fumantes ativos, passivos e não fumantes.

Abstract

Objective: To analyze the influence of active and passive smoking on cardiorespiratory responses in asymptomatic adults over the stages of an incremental submaximal exercise test performed on a treadmill. Participants (n = 48, 33.7 ± 9.7 years) were divided into three groups: Active Smoker (n = 16, age 36.5 ± 8 years), Group Passive Smoker (n = 16, age of 34.6 ± 11.9 years) and Group Non Smoker (n = 16, age 30 ± 8.1 years). All answered a questionnaire, underwent anthropometric assessment, spirometry and cardiopulmonary exercise test according to the modified Bruce protocol treadmill test. Results: VO 2 max did not differ statistically between the study groups (P = 0.08). The average VO2max of the sample was 36.8 ± 9.2 ml.kg-1.min-1, being higher in males (39.1 ± 10.1 ml.kg-1.min-1) than in women analyzed (35.5 ± 8.6 ml.kg-1.min-a) (p = 0.86). Significant correlations were detected negative and statistically significant between the VO2max and age (r = -0.367, p = 0.01), BMI (r = -0.406, p = 0.004), body fat percentage (r = -0.462, p = 0.001). Waist circumference correlated negatively and not significantly with VO2max (r = -0.281, p = 0.05). Conclusion: There was no statistically significant difference in VO2 between smokers assets, liabilities and non-smokers. It was observed that the VO2max decreases with increasing age, body mass index, the percentage of body fat and waist.