| Outcome Measures: |
Primary: Insulin-stimulated Glucose Disposal Rate, Insulin-mediated glucose disposal rate per kg of fat free mass per min, Baseline and week16 | Secondary: Visceral Fat Volume, Baseline and week 16|Abdominal Subcutaneous Fat Volume, Baseline and week 16|Hepatic Lipid Content, Baseline and week 16|Hepatic Glucose Production Rate, ability of insulin to suppress hepatic glucose production = hepatic insulin sensitivity, Baseline and week 16|Serum Lipid and Lipoprotein Levels, Baseline and week 16|Liver Enzyme Levels, Baseline and week 16|Hemoglobin, Baseline and Week 16|Hematocrit, Percentage of blood volume that is red cells, Baseline and Week 16|Serum Adiponectin Levels, Baseline and week 16|Myocardial Contractility, E/A ratio; ratio of the early (E) to late (A) ventricular filling velocities, Baseline and week 16|Myocardial Contractility-LV Ejection Time, Time required to empty the left ventricle into the aorta, Baseline and week 16|Myocardial Contractility-DT, Deceleration time; time from the peak of early diastolic filling to baseline, Baseline and week 16|Myocardial Contractility-SBP, Systolic blood pressure; peak vascular pressure during ventricular contraction, Baseline and week 16|Myocardial Contractility-DBP, Diastolic blood pressure; vascular pressure during ventricular relaxation (diastole), Baseline and week 16
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