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Rapid Weight Loss Vs. Slow Weight Loss: Which Is More Effective on Body Composition and Metabolic Risk Factors? Publisher



Ashtarylarky D1, 2 ; Ghanavati M3 ; Lamuchideli N2 ; Payami SA2 ; Alavirad S2 ; Boustaninejad M4 ; Afrisham R5 ; Abbasnezhad A7 ; Alipour M2, 6
Authors
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Authors Affiliations
  1. 1. Department of Clinical Biochemistry, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  2. 2. Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  3. 3. Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Physical Education and Sports Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
  5. 5. Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  7. 7. Nutritional Health Research Center, Department of Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran

Source: International Journal of Endocrinology and Metabolism Published:2017


Abstract

Background: Achieving weight loss (WL) in a short time regardless of its consequences has always been the focus of manyobese and overweight people. In this study, anthropometric and metabolic effects of two diets for rapid and slow WL and their consequences were examined. Methods: Forty-two obese and overweight individuals were randomly divided to 2 groups; rapid WL (weight loss of at least 5% in 5 weeks) and slow WL (weight loss of at least 5% in 15 weeks). To compare the effects of the rate of WL in 2 groups, the same amount of was achieved with different durations. Anthropometric indices, lipid, and glycemic profiles, and systolic and diastolic blood pressures were evaluated before and after the intervention. Results: Both protocols of rapidWLandslowWLcaused reduction in waist circumference, hip circumference, totalbodywater, body fat mass, lean body mass, and resting metabolic rate (RMR). Further reduction in waist circumference, hip circumference, fat mass, and percentage of body fat was observed in slow WL and decreased total body water, lean body mass, fat free mass, and RMR was observed in rapid WL. Improvement in lipid and glycemic profiles was observed in both groups. Reduction of low-density lipoprotein and fasting blood sugar, improvement of insulin resistance, and sensitivity were more significant in rapid WL in comparison to slow WL. Conclusions: Weight Loss regardless of its severity could improve anthropometric indicators, although body composition is more favorable following a slow WL. Both diets improved lipid and glycemic profiles. In this context, rapid WL was more effective. © 2017.
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