Abstract
Peak Expiratory Flow (PEF) measurement is simple, reproducible and quantitative existence of airflow obstruction. Represents the maximum flow generated during a forced expiration, performed at maximum intensity, starting from total lung capacity. Obesity produces pulmonary restriction due to decreased diaphragmatic excursion by increased abdominal adiposity or weight on the chest wall, leading to a reduction in lung volumes compared with predicted values for weight and age. Smoking is now the leading cause of preventable disease and premature disability, and will become the leading cause of preventable death in the twenty-first century. The objectives were To measure and compare PFE university in healthy obese and smokers. We selected 30 students from FEPI - University Center Itajubá-MG, aged 18 years and of both sexes. All agreed and signed the informed consent form, and were divided into 3 groups: G1: Healthy, G2: Obese, G3: Smokers. The subjects performed the test measurement device with PEF Peak Flow Meter (Respironics ®). After collection of PEF in the 3 groups showed the following scores: Average PEF G1: 389 ± 91.827 l / min, mean PEF G2: 534± 134.180 l / min and average PEF G3: 437 ± 62.012 l / min. Smoking and obesity have already proven their effects on the reduction of PEF, but listing the groups studied, the smoker has a greater obstruction in the expiratory phase in relation to obesity, where it was also observed that increasing BMI did not impair pulmonary function in obese men studied.