Cited by 1,896Body Composition Measurement TechniquesElectrical and Bioimpedance TomographyNon-Invasive Vital Sign Monitoring

Assessment of fat-free mass using bioelectrical impedance measurements of the human body

Lukaski, HC, Johnson, PE, Bolonchuk, WW, Lykken, GI·1985·The American Journal of Clinical Nutrition

Abstract

A method which involves the measurement of bioelectrical resistive impedance (R) for the estimation of human body composition is described. This method is based upon the principle that the electrical conductivity of the fat-free tissue mass (FFM) is far greater than that of fat. Determinations of R were made in 37 healthy men aged 28.8 +/- 7.1 yr (mean +/- SD) using an electrical impedance plethysmograph with a four electrode arrangement that introduces a painless signal (800 microA at 50 kHz) into the body. FFM was assessed by hydrodensitometry and ranged from 44.6-98.1 kg. Total body water (TBW) determined by D2O dilution and total body potassium (TBK) from whole body counting were 50.6 +/- 10.3 L and 167.5 +/- 38.1 g, respectively. Test-retest correlation coefficient was 0.99 for a single R measurement and the reliability coefficient for a single R measurement over 5 days was 0.99. Linear relationships were found between R values and FFM (r = -0.86), TBW (r = -0.86), and TBK (r = -0.79). Significant (p less than 0.01) increases in the correlation coefficients were observed when the predictor Ht2/R was regressed against FFM (r = 0.98), TBW (r = 0.95), AND TBK (r = 0.96). These data indicate that the bioelectrical impedance technique is a reliable and valid approach for the estimation of human body composition. This method is safe, noninvasive, provides rapid measurements, requires little operator skill and subject cooperation, and is portable. Further validation of this method is recommended in subjects with abnormal body composition.

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Crossref · 10.1093/ajcn/41.4.810

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Authors
Lukaski, H., Johnson, P., Bolonchuk, W., & Lykken, G.
Corresponding author
Lukaski, HC
Venue
The American Journal of Clinical Nutrition
Publisher
Elsevier BV
Published
1985-04
Volume
41
Issue
4
Pages
810-817
ISSN
0002-9165 (ISSN-L)
OpenAlex
W2109555667
Cited by
1,896
References
38
Citations by year
2026: 32 · 2025: 50 · 2024: 52 · 2023: 45 · 2022: 41 · 2021: 43 · 2020: 44 · 2019: 53 · 2018: 46 · 2017: 46 · 2016: 52 · 2015: 50 · 2014: 75 · 2013: 43 · 2012: 53
FWCI
13.65
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrical and Bioimpedance Tomography
  • Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
Keywords
fat-free mass, bioimpedance, body composition, total body water, total body potassium, hydrodensitometry, test-retest reliability, plethysmography, healthy men
MeSH terms
Adipose Tissue, Adult, Body Composition, Body Water, Electric Conductivity, Electrochemistry, Electrodes, Humans, Male, Mathematics, Nutritional Physiological Phenomena, Potassium

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