Influência do nível de atividade física no metabolismo ósseo em indivíduos submetidos à cirurgia bariátrica

• Autor(a) principal: Cremon, Alexandre dos Santos
• Data de Publicação: 2013
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Estadual de Maringá (RI-UEM)
• Texto Completo: http://repositorio.uem.br:8080/jspui/handle/1/2230
• topic: Cirurgia bariátrica - Atividade física; Atividade física - Densidade mineral óssea; Densidade mineral óssea - Cirurgia bariátrica; Absortometria - Raio X de dupla energia (DXA); Ciências da Saúde; Educação Física

Bariatric surgery (CB) is a method of treating obesity that has been featured in recent years mainly by two factors: the exponential increase in cases of obesity and extreme obesity, and has been shown to be good possibility for the treatment of obesity especially for patients who require large weight losses. The main advantages of this method is the superior weight loss, maintenance of this situation in medium and long term, along with the resolution of comorbidities. On the other hand, there is the need of monitoring and evaluations to minimize the risk of bone loss, and the need to adopt an active lifestyle to prevent weight regain. However, there are few studies that verify the physical activity levels in individuals undergoing bariatric surgery. Accordingly, the present study aims to analyze the level of physical activity, along with indicators of bone metabolism in patients submitted to bariatric surgery. The sample consisted in 89 subjects who underwent bariatric surgery, categorized according to the time of surgery. In addition to the individuals operated, we selected a sample of 29 individuals in equivalent age, sex, weight and height, specifically evaluated for comparison with the group operated. We conducted tests of bone mineral density by DXA and blood parameters related to bone metabolism. All the assessments were performed at the Núcleo de Estudos Multiprofissional da Obesidade (NEMO), and the equipment required for the measures are part of the laboratory. A significant difference was found in the variables PTH of group G3 in relation to G1 and G2 and serum calcium of G3 group with the G1. The variable urinary calcium of groups G1, G2 and G3 showed percentage changes below normal levels of 12.5%, 23.9% and 11.1%, respectively. No associations were found between diagnosis of variables and physical activity level of the total sample. Regarding the percentage of results, both groups (active and sedentary) showed similar results, except for the variable blood glucose and total cholesterol, in which were found a higher prevalence of abnormal values in the sedentary group. The lowest BMD values were found in the operated group, showing significant differences in total body, femoral neck and total femur. Associations were found between surgery and diagnosis of bone mineral density of the total body and total femur, indicating an odds ratio of 2.33 (1.12 to 4.84) and 2.38 (1.15 to 4.93 ), respectively. Thus, it is necessary to develop more research on the influence of physical activity and long-term monitoring of these and other patients in order to provide useful information on bone changes from bariatric surgery.