| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
ORIGINAL RESEARCH COMMUNICATION |
1 From the Pennington Biomedical Research Center, Baton Rouge, LA.
Background: Only a few published studies in children used several methods to compare body fat in large groups of fatter and leaner multiethnic children. We hypothesized that the preferred methods of determining body fat may differ in children with larger compared with smaller amounts of body fat, in boys compared with girls, and in African Americans compared with whites.
Objective: Our objective was to evaluate several methods of predicting body fat in 10–12-y-old white and African American boys and girls.
Design: The body fat of 129 African American and white boys and girls aged 10–12 y, distributed equally by sex and race, was measured with use of dual-energy X-ray absorptiometry (DXA), underwater weighing (densitometry), isotope dilution (H218O), bioelectrical impedance, skinfold thicknesses, corporal diameters, and circumferences.
Results: With use of DXA as the criterion variable, body fat was bimodally distributed in the boys and skewed to higher values in the girls. Biceps skinfold thickness had the highest predictive value of any single skinfold thickness compared with DXA fat. All formulas for estimating body fat from skinfold thicknesses, body density, or impedance performed better in the children in the upper one-half of the fat distribution (the fatter children) than in those in the lower one-half (the leaner children). Body mass index was highly correlated with body fat (R2 = 0.77); there was a good correlation for the fatter children (R2 = 0.66) and no correlation for the leaner children (R2 = 0.09). The hydration of the fat-free mass was significantly higher in the fatter children than in the leaner ones (79.2% compared with 76.7%).
Conclusions: These data are consistent with the hypothesis that all methods of estimating body fat work better in children with larger amounts of body fat. The best formulas use skinfold thicknesses, bioelectrical impedance, and a 4-compartment model.
Key Words: DXA • dual-energy X-ray absorptiometry • bioelectrical impedance analysis • skinfold thicknesses • densitometry • isotope dilution • children • body fat • ethnicity • race
This article has been cited by other articles:
|
|
 |
|
  J. P DeLany, G. A Bray, D. W Harsha, and J. Volaufova Energy expenditure and substrate oxidation predict changes in body fat in children. Am. J. Clinical Nutrition, October 1, 2006; 84(4): 862 - 870. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. Ehtisham, N. Crabtree, P. Clark, N. Shaw, and T. Barrett Ethnic Differences in Insulin Resistance and Body Composition in United Kingdom Adolescents J. Clin. Endocrinol. Metab., July 1, 2005; 90(7): 3963 - 3969. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. S. Freedman, L. K. Khan, M. K. Serdula, W. H. Dietz, S. R. Srinivasan, and G. S. Berenson The Relation of Childhood BMI to Adult Adiposity: The Bogalusa Heart Study Pediatrics, January 1, 2005; 115(1): 22 - 27. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. C. Buchholz, C. Bartok, and D. A. Schoeller The Validity of Bioelectrical Impedance Models in Clinical Populations Nutr Clin Pract, October 1, 2004; 19(5): 433 - 446. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. J. Murphy, B. S. Metcalf, L. D. Voss, A. N. Jeffery, J. Kirkby, K. M. Mallam, and T. J. Wilkin Girls at Five Are Intrinsically More Insulin Resistant Than Boys: The Programming Hypotheses Revisited--The EarlyBird Study (EarlyBird 6) Pediatrics, January 1, 2004; 113(1): 82 - 86. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. J. Gately, D. Radley, C. B. Cooke, S. Carroll, B. Oldroyd, J. G. Truscott, W. A. Coward, and A. Wright Comparison of body composition methods in overweight and obese children J Appl Physiol, November 1, 2003; 95(5): 2039 - 2046. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. W Taylor, I. E Jones, S. M Williams, and A. Goulding Body fat percentages measured by dual-energy X-ray absorptiometry corresponding to recently recommended body mass index cutoffs for overweight and obesity in children and adolescents aged 3-18 y Am. J. Clinical Nutrition, December 1, 2002; 76(6): 1416 - 1421. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. A Bray, J. P DeLany, J. Volaufova, D. W Harsha, and C. Champagne Prediction of body fat in 12-y-old African American and white children: evaluation of methods Am. J. Clinical Nutrition, November 1, 2002; 76(5): 980 - 990. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. R Boye, T. Dimitriou, F. Manz, E. Schoenau, C. Neu, S. Wudy, and T. Remer Anthropometric assessment of muscularity during growth: estimating fat-free mass with 2 skinfold-thickness measurements is superior to measuring midupper arm muscle area in healthy prepubertal children Am. J. Clinical Nutrition, September 1, 2002; 76(3): 628 - 632. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
