Relationship of resting energy expenditure to body composition and clinical health markers
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848 sedentary, obese women (4711 yrs, 9218 kg, 1637 cm, 454% body fat) were medically screened prior to participation in an exercise and weight loss program. Medical data and fasting blood samples were collected and a correlation analysis was used to examine relationships between resting energy expenditure (REE), body composition and serum markers of health and safety. Baseline REE levels were significantly (all p<0.001) correlated to systolic blood pressure (r=0.093), diastolic blood pressure (r=0.199) and resting heart rate (r=0.166) in addition to higher levels of body mass (r=0.666), DEXA fat mass (r=0.569), DEXA fatfree mass (r=0.694), DEXA % body fat (r=0.195),waist circumference (r=0.423) and hip circumference (r=0.549). In addition, REE values were positively correlated (p<0.001 to 0.010) to triglycerides (r=0.104), total cholesterol: HDL ratio (r=0.112), uric acid (r=0.130) and negatively correlated to HDL cholesterol (r= 0.161). REE levels were not correlated to total cholesterol (r= 0.038; p=0.29), LDL cholesterol (r= 0.012; p=0.75) and glucose levels (r=0.060; p=0.10). Data from this large sample provide continued support that management of REE levels is intimately related to several variables central to obesity and heart disease.
