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A Low Glycemic Index Diet Combined with an Aerobic-Resistance Exercise Program Reduces Risk Factors Associated with the Metabolic Syndrome | OMICS International | Abstract
ISSN: 2165-7904

Journal of Obesity & Weight Loss Therapy
Open Access

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Research Article

A Low Glycemic Index Diet Combined with an Aerobic-Resistance Exercise Program Reduces Risk Factors Associated with the Metabolic Syndrome

Kendra E Brett1 and Kelly A Meckling2*
1Department of Human Kinetics, University of Ottawa, Healthy Active Living and Obesity Research Group, Children’s Hospital of Eastern Ontario, Ottawa, ON, Canada
2Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
Corresponding Author : Kelly A Meckling
Department of Human Health and Nutritional Sciences
University of Guelph, Guelph, ON, Canada, N1G2W1
Tel: 519-824-4120 ext: 53742
Fax: 519-763-5902
E-mail: [email protected]
Received June 27, 2012; Accepted August 04, 2012; Published August 09, 2012
Citation: Brett KE, Meckling KA (2012) A Low Glycemic Index Diet Combined with an Aerobic-Resistance Exercise Program Reduces Risk Factors Associated with the Metabolic Syndrome. J Obes Wt Loss Ther 2:142. doi:10.4172/2165-7904.1000142
Copyright: © 2012 Brett KE, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: The purpose of this study was to examine the effects of Low Glycemic Index (LGI) and High Glycemic Index (HGI) versions of a low fat, Moderate Carbohydrate (CHO), moderate protein diet, when combined with an exercise program, on Cardiovascular Disease (CVD) risk factors in people with Metabolic Syndrome (MetS).   Methods: The four groups included ad libitum and 30% calorie restricted high and low GI diets. Twenty six individuals completed the 12 week intervention. Data was collected prospectively at weekly counselling sessions.   Results: Calorie restriction was similar between groups (p=0.543), and thus the groups were pooled, leaving only the HGI and LGI groups. The LGI group significantly reduced the GI of their diet (10.5 GI units), significantly reduced the number of subjects classified with MetS (8 people), and had significantly greater improvements in total body weight (7.2 kg), BMI (2.0 kg/m2), percent body fat (3.3 %) and hip circumference (4.9 cm) compared to the HGI groups, as well as additional improvements in waist circumference (6.3 cm), blood pressure (10.5 mmHg systolic, 5.5 mmHg diastolic), triglycerides (0.6 mmol/L). Both groups had similar improvements in fitness. There were no significant changes in fasting levels of blood glucose, serum insulin, and serum total, HDL, or LDL cholesterol.   Conclusions: The LGI diet and exercise program had a greater ability to reduce the number and severity of CVD risk factors in individuals with MetS, and represents valuable knowledge from which future lifestyle interventions can be developed to reduce the incidence of MetS and the development of CVD.

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