Programa de perda de peso saudável e seu efeito sobre o risco cardiometabólico de adultos

• Ano de defesa: 2017
• Autor(a) principal: Leite, Marina de Macedo Rodrigues
• Orientador(a): Mendes Netto, Raquel Simões
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Sergipe
• Programa de Pós-Graduação: Pós-Graduação em Educação Física
• País: Brasil
• Palavras-chave em Português: Educação física; Obesidade; Carboidratos; Carboidratos na nutrição humana; Emagrecimento; Dieta de emagrecimento; Intervenção; HIIT; Risco cardiometabólico
• Palavras-chave em Inglês: Obesity; Intervention; Carbohydrates; Cardiometabolic risk
• Área do conhecimento CNPq: CIENCIAS DA SAUDE::EDUCACAO FISICA
• Link de acesso: https://ri.ufs.br/handle/riufs/4968

INTRODUCTION: Carbohydrate restriction have been currently pointed as the main strategy for weight loss and improvement of cardiometabolic health. However, it is not elucidated its real effect over cardiometabolic risk factors, due to the different levels of restriction and specially when associated with regular exercise practice. OBJECTIVE: This study aimed to propose a protocol of intervention for healthy weight loss and to evaluate its effect over the metabolic risk factors of overweight individuals. METHODS: The present study was a Randomized Controlled Trial of 12 weeks, with nutritional monitoring and diet with low carbohydrate (L-CHO – 100 g/d) or adequate carbohydrate (A-CHO – 250 g/d) amounts, associated to high intensity intermittent (HIIT) or continuous exercises. The study began with 106 overweight subjects, of wich 57 were allocated to the continuous exercise group and 49 were allocated to the HIIT group, distributed into two groups, according to the amount of carbohydrate. The subjects were assessed for weight, height, abdominal and hip circumference, in the baseline (M0) and after 12 weeks (M1). Thirty one volunteers ended the intervention in the HIIT group and their datum were analized for cardiometabolic risk factors changes after the intervention, based on their lipid markers, insulin and glucose levels. For the statistical analysis were apllyied two-way ANOVA with Bonferroni post-hoc and p<0,05 was considered significant. RESULTS: Both groups showed improvements in the antropometric variables. Regarding cardiometabolic risk factors, it was observed that there was an improvement for both groups, however, a significant increase in HDL-c was observed only in the A-CHO group (53,3 mg/dl – 60,1 mg/dl), while the LDL-c similarly decreased in both groups (A-CHO: 121,8 mg/dl – 97,4 mg/dl; R-CHO: 112,7 mg/dl – 94,9 mg/dl). A significant reduction in the number of risk factors associated with metabolic syndrome was observed, but the reduction in the prevalence of metabolically unhealthy individuals was more expressive among individuals in the A-CHO group. CONCLUSION: Thereby, It is concluded that both diets applied were efficient to guarantee improvement of body composition and weight loss. In addition, both diet strategies may be efficient to promote improvements in cardiometabolic risk parameters. However, the improvement in the protective factor (HDL) and the final risk classification indicated the adequacy of carbohydrates as the best strategy associated with caloric restriction and HIIT.