Evaluation of functional capacity, body composicion and pulmonary function after bariatric surgery

Abstract

<p style="text-align:justify;"> <span style="font-size:10.0pt;font-family:;" "=""><span style="font-family:Verdana;">Introduction: Obesity has been considered a global epidemic and a serious public health problem closely related to other diseases. Moreover, obese individuals have limitations in physical capacity and pulmonary function. Weight loss induced by bariatric surgery appears to help reverse this situation. However, questions about physical capacity and lung function, and its relationship with body composition remain to be clarified. Objective: To evaluate the physical capacity, body composition and lung function in women undergoing bariatric surgery. Methods: Twenty five women who underwent bariatric surgery between 6 and 24 months ago, and 10 non-obese women were evaluated for exercise capacity by the six minutes walk test (6 MWT), body composition by bio-electrical impedance analysis and lung function by spirometry and measurement of maximal static respiratory pressures. Results: Subjects with BMI <30 kg/m</span>^{<span style="font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> were found to have better physical performance, demonstrated by increased 6 MWT distance, not differing from non-obese women. When compared with non-obese women, there were no significant differences in body composition and lung function. Higher BMI was correlated with shorter distances in 6 MWT. Conclusion: 6 to 24 months after surgery, when the weight loss of patients who underwent bariatric surgery reaches levels considered non-obese, it provides improvement in physical performance to a level </span></span><span style="font-family:Verdana;font-size:10pt;line-height:1.5;">similar to that of non-obese patients.</span> </p

Improvement in lung function and functional capacity in morbidly obese women subjected to bariatric surgery

“…The significant reduction in lean mass was possibly caused by a change in the absorption of nutrients due to the surgical procedure 42 as well as to the low-calorie diet generally prescribed in the postoperative period, which leads to proteolysis to meet the metabolic needs of the patient 43 , 44 . These findings are in agreement with data described in a previous study 42 in which the authors analyzed body composition in obese individuals before and 30 days after bariatric surgery and found a mean reduction of 14 kg in weight, 5.2 kg/m 2 in BMI, 9.7 kg in fat mass and 4.4 kg in lean mass after one month.…”