Avaliação da função pulmonar na obesidade graus I e II

Abstract

Background: Obesity can affect the thorax, diaphragm and abdominal muscles, thereby resulting in altered respiratory function. Objective:To evaluate the effects of obesity and to determine whether body mass index (BMI) and waist circumference correlate with spirometry values in obese individuals. Methods:We studied 96 non-smokers of both sexes, all suffering from class I or class II obesity and ranging in age from 18 to 75. All participants presented a BMI between 30 kg/m 2 and 40 kg/m 2 and none had a history of morbidity. Spirometry was performed, and waist circumferences were measured.Results: No significant differences were found between the spirometric values of men with class I or II obesity and those of non-obese men. In obese women, forced vital capacity and forced expiratory volume in one second (FEV 1 ) were significantly lower than in women who were not obese. Obese individuals of both sexes presented significantly lower expiratory reserve volume (ERV) than did non-obese individuals. Although inspiratory capacity was greater in obese men and women, the difference was significant only for the men. In obese men, there was a significant negative correlation, not seen in the women, between waist circumference and FEV 1 . Conclusion:Pulmonary function is altered in women suffering from class I or II obesity. In obese men, although pulmonary function is unaffected by BMI, we observed a significant negative correlation between BMI and ERV. We can conclude that pulmonary function is influenced by waist circumference in men suffering from class I or II obesity.

Pulmonary function and quality of life in patients with morbid obesity six months after bariatric surgery

“…Excess weight may cause impaired pulmonary function, especially in morbid obesity [6][7][8] . Thus, it is interesting to study pulmonary function by spirometry during the preoperative period in order to investigate the possibility of restrictive or obstructive pulmonary disorder.…”

Correlação da força muscular respiratória com variáveis antropométricas de mulheres eutróficas e obesas

“…1,2,7,8 In addition to these diseases, other studies show that obesity can also promote considerable changes in respiratory function: decreased functional residual capacity (FRC), tidal volume (TV), and lung compliance; disturbed ventilation-perfusion ratio (VA/Q); alveolar hypoventilation; carbon dioxide (CO2) retention and increased respiratory airflow resistance; and changes in the respiratory mechanics of the rib cage and diaphragm, increasing respiratory muscle workload. 2,9,10 Respiratory muscle strength (RMS) can be measured by vacuum manometry and expressed as centimeters of water (cm H2 2 O) through maximal respiratory pressures (Pmax). 11,13 Maximal inspiratory pressure (PImax) is the highest negative pressure that can be generated during inspiration and refers to ventilatory capacity.…”

Tempo máximo fonatório de /e/ e /ė/ não-vozeado e sua relação com índice de massa corporal e sexo em crianças

“…In addition, the accumulation of adipose tissue in the abdominal and chest wall by producing excessive weight on the diaphragm can change its movement and breathing pattern, compromising voice quality. This accumulation of fat can influence pneumo-phonoarticulatory coordination, promoting an imbalance between respiratory, glottal and resonance/articulation levels [9][10][11][12] . The literature is scarce regarding studies that show the influence of BMI and gender on the performance of respiratory and phonation levels, and the progressive output control of lung air without the help of the vocal folds by means of sustained relaxation of the respiratory muscles in children.…”