PT - JOURNAL ARTICLE AU - Eli Maria Pazzianotto-Forti AU - Fabiana Peixoto-Souza AU - Camila Piconi-Mendes AU - Letícia Baltieri AU - Marcela Barbalho-Moulin AU - Irineu Rasera-Junior AU - Elisane Pessotti AU - Dirceu Costa TI - Influence of anthropometric characteristics in expiratory reserve volume of morbidly obese DP - 2012 Sep 01 TA - European Respiratory Journal PG - P630 VI - 40 IP - Suppl 56 4099 - http://erj.ersjournals.com/content/40/Suppl_56/P630.short 4100 - http://erj.ersjournals.com/content/40/Suppl_56/P630.full SO - Eur Respir J2012 Sep 01; 40 AB - Introduction: The reduction of the expiratory reserve volume (ERV) is considered the most consistent finding for changes in lung volume in morbid obesity. The importance of decreased ERV in morbid obesity is attributed to the known association between these volumes with the closure of small airways, which causes hypoxemia. objective: Was to correlate ERV with anthropometric characteristics of morbid obese women. Methods: Cross-sectional study with morbidly obese (BMI≥40kg/m2) and control group (BMI between 18.5 and 24.9 kg/m2), both with normal lung function. The body mass index (BMI), waist circumference (WC), waist-hip ratio (WHR), and neck circumference (NC) were measured. Subsequently, pulmonary function test were performed. Results: A total of 30 morbidly obese (BMI 44.7±4.11 kg/m2) and 30 lean women (BMI 22.1±1.8 kg/m2) were evaluated. ERV was significantly lower in obese [0.28 (0.14L-0.60 L)] when compared to lean women [0.74 (0.51L-1.08L)] The percentage of predicted values of forced expiratory volume in one second (FEV1) were significantly lower in morbidly obese (88.31±4.31L/min) when compared to lean women (102.75±13.2L/min). There were no differences in forced vital capacity (FVC), the ratio FEV1/FVC. There was negative correlation between body mass, BMI, waist circumference (WC), waist-to-hip ratio (WHR) and neck circumference (NC) with ERV, respectively (r=- 0.3757, -0.4112, -0.4771, -0.03456, -0.5145). Conclusions: The ERV is influenced by body mass, BMI, WC, WHR and NC.