Do hormonal indices of maturation explain energy expenditure differences in African American and Caucasian prepubertal children? International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity. [Int J Obes Relat Metab Disord] Journal article | | Title | Do hormonal indices of maturation explain energy expenditure differences in African American and Caucasian prepubertal children? | | Author(s) | Sun M, Gower BA, Nagy TR, Bartolucci AA, Goran MI | | Institution | Department of Nutrition Sciences, University of Alabama at Birmingham, 35294, USA. | | Source | Int J Obes Relat Metab Disord 1999 Dec; 23(12):1320-6. | | MeSH | African Continental Ancestry Group
Analysis of Variance
Androgens
Body Composition
Child
Child Development
Cross-Sectional Studies
Energy Metabolism
Estrogens
European Continental Ancestry Group
Female
Humans
Male
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.
United States
| | Abstract | OBJECTIVE: To examine the relationships between hormonal indices of maturation and total, resting and physical activity-related energy expenditure (TEE, REE and AEE) in African American and Caucasian prepubertal children.
DESIGN: Cross-sectional study.
SUBJECTS: Sixty-four African American and 48 Caucasian prepubertal children.
MEASUREMENTS: TEE (by doubly labeled water), REE (by indirect calorimetry), fat mass and fat-free mass (by dual-energy X-ray absorptiometry), fasting serum dehydroepiandrosterone-sulfate (DHEAS), androstenedione, and estrone-sulfate (by radioimmunoassay).
RESULTS: Serum concentrations of hormones correlated significantly with REE and TEE (r values range from 0.33 to 0.76, P<0.001). Only androstenedione correlated significantly with AEE (r = 0.23, P<0.05). However, these correlations were no longer significant after adjusting energy expenditure components for fat-free mass. In multiple regression models, ethnicity was not a significant determinant of any energy expenditure component after adjusting for body composition and hormone concentrations.
CONCLUSION: Hormonal indices of maturation do not influence energy expenditure in this group of African American and Caucasian prepubertal children. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 10643691 |
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