ABSTRACT
Objetivos: a) identificar alterações espirométricas em indi¬víduos com sobrepeso e obesos; b) determinar a freqüência e a gravidade dos distúrbios ventilatórios em obesos; c) correlacionar índice de massa corpórea (lMC), circunferência abdomi¬nal (CA) e a relação cintura quadril (RCQ) com parâmetros es¬pirométricos. Métodos: Foram estudados 156 voluntários de ambos os gêneros (32 com peso normal, 39 com sobrepeso e 85 obesos), com idades entre 15 e 51 anos, sedentários, assintomáticos oriundos de ambulatório universitário e clínica privada. Todos foram submetidos à avaliação clínica, exames laboratoriais e espirometrias. Os distúrbios ventilatórios classificados em obstrutivos, restritivos e mistos foram associados à intensidade da obesidade.
Objective: a) To identify spirometric dysfunction in over¬weight and obese individuais; b) to determine the frequency and severity of ventilatory dysfunction; and ci) to correlate body mass index (BMl), abdominal circunference (AC) and hip¬waist (HW) ratio with spirometric parameters in such sample. Methods: The study was conducted on 156 sedentary asymptomatic volunteers of both sexes (32 of normal weight, 39 overweight and 85 obese), aged 15 to 51 years from an obesity outpatient clinic and from a private clinic. Ali subjects were submitted to c1inical evaluation, laboratorial examination and spirometric exams. Height, weight, BMl, AC, and HW ratio measurements were used to assess body fat distribution and correlated to spirometric parameters. Results: The frequency of ventilatory dysfunction was 28.2 per cent among overweight individuais and 39.3 per cent in obeses (p<0.05); ventilatory dysfunction was found in 56.8 per cent, 52.1 per cent and 78.1 per cent among c1ass I, n and ln obese subjects, respectively. There was c1ear association of the ventilatory disorders with increasing obesity class...