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American Journal of Clinical Nutrition, Vol 48, 1362-1366, Copyright © 1988 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Body fat assessed from body density and estimated from skinfold thickness in normal children and children with cystic fibrosis

JL Johnston, MS Leong, EG Checkland, PC Zuberbuhler, PR Conger and HA Quinney
Department of Foods and Nutrition, University of Alberta, Edmonton, Canada.

Body density and skinfold thickness at four sites were measured in 140 normal boys, 168 normal girls, and 6 boys and 7 girls with cystic fibrosis, all aged 8-14 y. Prediction equations for the normal boys and girls for the estimation of body-fat content from skinfold measurements were derived from linear regression of body density vs the log of the sum of the skinfold thickness. The relationship between body density and the log of the sum of the skinfold measurements differed from normal for the boys and girls with cystic fibrosis because of their high body density even though their large residual volume was corrected for. However the sum of skinfold measurements in the children with cystic fibrosis did not differ from normal. Thus body fat percent of these children with cystic fibrosis was underestimated when calculated from body density and invalid when calculated from skinfold thickness.




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Copyright © 1988 by The American Society for Nutrition