Cited by 311Body Composition Measurement TechniquesElectrical and Bioimpedance TomographyHemodynamic Monitoring and Therapy

Estimation of extracellular and total body water by multiple-frequency bioelectrical-impedance measurement

Segal, KR, Burastero, S, Chun, A, Coronel, P, Pierson, RN, Wang, J·1991·The American Journal of Clinical Nutrition

Abstract

This study evaluated a new technology of bioelectrical-impedance (BI) measurement that makes use of multiple frequencies (5, 50, and 100 kHz) for estimation of extracellular and total body water. In 36 healthy males, resistance and reactance at three frequencies were compared with extra-cellular water (ECW) and total body water (TBW) determined by isotope dilution. ECW was best predicted by resistance measured at 5 kHz, corrected for height and weight (R = 0.930, SEE = 1.94 L) whereas TBW was best predicted by resistance at 100 kHZ and weight (R = 0.947, SEE = 2.64 L). Cross-validation analysis on two randomly selected subsets (n = 18 each) indicated that the prediction equations were reproducible and valid. Thus, BI at dual frequencies is valid for determination of body-water compartments and may be useful in the nutritional assessment of patients in whom body water and hydration is of clinical concern.

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Crossref · 10.1093/ajcn/54.1.26

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  • The study tested its equations against earlier published BIA equations whose development samples Dioum et al. assumed included at least some black participants.

    “Performance of developed equations for the prediction of FFM was also tested using all available data (n=362) against previously published equations derived using participant samples which were assumed by Dioum et al. to consist of at least some ethnically black participants (5, 24–32).”

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Authors
Segal, K., Burastero, S., Chun, A., Coronel, P., Pierson, R., & Wang, J.
Affiliations
Mount Sinai Health System (US)
Corresponding author
Segal, KR
ORCID
Wang, J
Venue
The American Journal of Clinical Nutrition
Publisher
Elsevier BV
Published
1991-07
Volume
54
Issue
1
Pages
26-29
ISSN
0002-9165 (ISSN-L)
OpenAlex
W2153250908
Cited by
311
References
15
Citations by year
2026: 2 · 2025: 2 · 2024: 6 · 2023: 6 · 2022: 4 · 2021: 6 · 2020: 5 · 2019: 9 · 2018: 8 · 2017: 12 · 2016: 5 · 2015: 11 · 2014: 10 · 2013: 8 · 2012: 5
FWCI
7.46
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (DK-37352, DK37948, R01DK037352, R01DK037948)
Topics
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrical and Bioimpedance Tomography
  • Health Sciences › Medicine › Surgery › Hemodynamic Monitoring and Therapy
Keywords
bioimpedance, extracellular water, total body water, body water compartments, hydration assessment, nutritional assessment
MeSH terms
Adult, Body Water, Electric Conductivity, Extracellular Space, Humans, Male, Middle Aged, Radioisotope Dilution Technique, Regression Analysis, Reproducibility of Results, Nutrition Assessment

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