Fat-free mass in children and young adults predicted from bioelectric impedance and anthropometric variables

S. Guo, A. F. Roche, Linda K Houtkooper

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

Fat-free mass (FFM) values calculated from densitometry by using a multicomponent model were significantly (p < 0.05) larger than those from the Siri two-component model (465 males, 441 females), especially in children and females. The multicomponent model assumes the density of FFM varies by age and sex because of differences in its constituents. With FFM values from the multicomponent model as the dependent variables and impedance and anthropometry as the independent variables, prediction equations were derived by all possible subsets of regression (140 males, 110 females). These equations had RMSEs of 2.2-2.3 kg and CVs of 5.0-5.8%. Cross-validation results were excellent for young adults but less satisfactory for children for whom a different calf skinfold had been measured. The selected equations are applicable to healthy white individuals aged 7-25 y.

Original languageEnglish (US)
Pages (from-to)435-443
Number of pages9
JournalAmerican Journal of Clinical Nutrition
Volume50
Issue number3
StatePublished - 1989
Externally publishedYes

Fingerprint

bioelectrical impedance
Electric Impedance
young adults
Young Adult
Fats
lipids
Anthropometry
Densitometry
Sex Characteristics
densitometry
impedance
anthropometric measurements
gender differences
calves
prediction

ASJC Scopus subject areas

  • Food Science
  • Medicine (miscellaneous)

Cite this

Fat-free mass in children and young adults predicted from bioelectric impedance and anthropometric variables. / Guo, S.; Roche, A. F.; Houtkooper, Linda K.

In: American Journal of Clinical Nutrition, Vol. 50, No. 3, 1989, p. 435-443.

Research output: Contribution to journalArticle

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