Journal
CLINICAL NUTRITION
Volume 26, Issue 6, Pages 806-809Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.clnu.2007.08.010
Keywords
obesity; metabolic syndrome; diabetes; energy expenditure; resting metabolic rate
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Background & aims: The metabolic syndrome is associated with central accumulation of fat. Previous studies showed that some obese subjects are characterized by a sparing energy metabolism. The aim of this study was to investigate whether obese subjects with metabolic syndrome have a tower resting metabolic rate than obese subjects without metabolic syndrome. Methods: Forty obese subjects were divided into three groups according to the presence of metabolic syndrome and type 2 diabetes; 15 non-obese healthy control subjects were also enrolled. Body composition (bio-impedance analysis) and resting metabolic rate (indirect calorimetry) were performed. Results: The group with metabolic syndrome exhibited a significantly tower resting metabolic rate adjusted for fat-free mass with respect to the control group and the obese group without metabolic syndrome (respectively: 108+/-3 vs. 118+/-3, p<0.01 and 123+/-3 kJ/kg fat-free mass 24 h, p<0.01; mean+/-sem). The obese group with metabolic syndrome and type 2 diabetes (T2D) had a not different adjusted resting metabolic rate (114+/-6 kJ/kg fat-free mass 24 h) with respect to other groups. Conclusions: An energy sparing condition seems to characterize non-diabetic obese subjects with metabolic syndrome. (C) 2007 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
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