Association of bioelectrical resistance with estimates of fat‐free mass determined by densitometry and hydrometry

M. D. Van Loan, R. A. Boileau, M. H. Slaughter, R. J. Stillman, Timothy G Lohman, Scott B Going, C. Carswell

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The relationship of whole‐body electrical resistance (WBR) to fat‐free mass, derived from densitometry (FFMDb), hydrometry (FFMTBW), and densitometric fat‐free mass corrected for hydration (FFMD+W) was investigated in three independent samples (AZ, IL, CA). Subjects included 75 males and 75 females ranging in age from 18 to 32 years. Whole‐body resistive index (WBRI) computed as height2/resistance was highly correlated to FFMDb, FFMTBW, and FFMD+W (r = 0.97, 0.95, and 0.97, respectively). Multiple regression analysis was employed to develop prediction equations for FFMDb, FFMTBW, and FFMD+W. In each prediction equation, WBRI was the single best predictor. Accounting for sex and variation in body weight significantly improved the prediction equations, by increasing the R2s to 0.95, 0.94, and 0.96 and decreasing the SEEs to 2.6, 3.2, and 2.5 kg, for FFMDb, FFMTBW, and FFMD+W, respectively. Similarity of the SEEs between methods (less than 1.0 kg difference) suggests consistency in the precision of WBRI estimates for body composition.

Original languageEnglish (US)
Pages (from-to)219-226
Number of pages8
JournalAmerican Journal of Human Biology
Volume2
Issue number3
DOIs
StatePublished - 1990

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hydrometry
densitometry
Densitometry
Body Composition
Electric Impedance
Body Weight
Regression Analysis
prediction
electrical resistance
body weight
hydration
multiple regression
body composition
regression analysis
gender
index
sampling
methodology

ASJC Scopus subject areas

  • Anatomy
  • Ecology, Evolution, Behavior and Systematics
  • Anthropology
  • Genetics

Cite this

Association of bioelectrical resistance with estimates of fat‐free mass determined by densitometry and hydrometry. / Van Loan, M. D.; Boileau, R. A.; Slaughter, M. H.; Stillman, R. J.; Lohman, Timothy G; Going, Scott B; Carswell, C.

In: American Journal of Human Biology, Vol. 2, No. 3, 1990, p. 219-226.

Research output: Contribution to journalArticle

Van Loan, M. D. ; Boileau, R. A. ; Slaughter, M. H. ; Stillman, R. J. ; Lohman, Timothy G ; Going, Scott B ; Carswell, C. / Association of bioelectrical resistance with estimates of fat‐free mass determined by densitometry and hydrometry. In: American Journal of Human Biology. 1990 ; Vol. 2, No. 3. pp. 219-226.
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