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Introduction: In general, in obese people a state of hyperleptinemia may impair both energy balance and the inflammatory process. However, it has not been fully investigated whether there is a relationship between hyperleptinemia and cardiorespiratory fitness (CRF) and resting energy expenditure (REE), in obese women., Methods: 83 obese women were enrolled in this cross-sectional study. Anthropometric measures, body composition, REE, CRF and serum concentration of leptin were measured. Pearson's correlation coefficient was performed to examine the relationship between circulating leptin level and other clinical variables. Multiple regression analysis was applied to determine predictors of REE and CRF. Effects were considered significant at p≤0.05., Results: The most important finding in the present study is that the hyperleptinemia state was inversely correlated with CRF (r=-0.382, p=0.001) and REE (r=-0.447, p<0.001). Moreover, a positive correlation with fat mass was confirmed (r=0.419, p<0.001). In addition, hyperleptinemia was an independent negative predictor of REE (r 2 =-2.649, p=0.010) and CRF (r 2 =-2.335, p=0.023)., Conclusion: Together our results may suggest a vicious cycle between the state of hyperleptinemia and a decrease in energy expenditure and cardiorespiratory fitness in obese women, which can impair whole body energy homeostasis. This information is important to contribute to clinical practices., (Copyright © 2017 Elsevier Inc. All rights reserved.)

Introduction and objective: Type 3 Diabetes Mellitus (DM3) is a term recently proposed to refer to the relationship between obesity, insulin resistance, type 2 diabetes mellitus and cognitive disorders. The study presents evidences about the DM3 and shows the role of physical exercise as a non-pharmacological treatment for DM3. Materials and Methods: It was performed a review of papers published between 2000 and 2016 from MEDLINE and LILACS databases. All stages of the review process have been conducted in two independent researchers. Results and discussion: It was observed the relationship between neurological and cognitive disorders with cardiometabolic alterations, insulin resistance and obesity related inflammatory process. Physical exercise (PE) showed beneficial effects on several risk factors for DM3. The term DM3 emphasizes the influence of conditions such as obesity, insulin resistance and type 2 diabetes mellitus on the Alzheimer's disease development. Conclusion: The PE has shown to be an important prevention/treatment strategy. Further studies are needed in PE modalities to consolidate the knowledge in the development of guidelines for PE prescription in the context of DM3. [ABSTRACT FROM AUTHOR]