Influence of posture and frequency modes in total body water estimation using bioelectrical impedance spectroscopy in boys and adult males

Kagawa, Masaharu, Wishart, Connie and Hills, Andrew P. (2014) Influence of posture and frequency modes in total body water estimation using bioelectrical impedance spectroscopy in boys and adult males. Nutrients, 6 5: 1886-1898. doi:10.3390/nu6051886


Author Kagawa, Masaharu
Wishart, Connie
Hills, Andrew P.
Title Influence of posture and frequency modes in total body water estimation using bioelectrical impedance spectroscopy in boys and adult males
Journal name Nutrients   Check publisher's open access policy
ISSN 2072-6643
Publication date 2014-05-01
Year available 2014
Sub-type Article (original research)
DOI 10.3390/nu6051886
Open Access Status DOI
Volume 6
Issue 5
Start page 1886
End page 1898
Total pages 13
Place of publication Basel, Switzerland
Publisher MDPI AG
Collection year 2015
Language eng
Formatted abstract
The aim of the study was to examine differences in total body water (TBW) measured using single-frequency (SF) and multi-frequency (MF) modes of bioelectrical impedance spectroscopy (BIS) in children and adults measured in different postures using the deuterium (2H) dilution technique as the reference. Twenty-three boys and 26 adult males underwent assessment of TBW using the dilution technique and BIS measured in supine and standing positions using two frequencies of the SF mode (50 kHz and 100 kHz) and the MF mode. While TBW estimated from the MF mode was comparable, extra-cellular fluid (ECF) and intra-cellular fluid (ICF) values differed significantly (p < 0.01) between the different postures in both groups. In addition, while estimated TBW in adult males using the MF mode was significantly (p < 0.01) greater than the result from the dilution technique, TBW estimated using the SF mode and prediction equation was significantly (p < 0.01) lower in boys. Measurement posture may not affect estimation of TBW in boys and adult males, however, body fluid shifts may still occur. In addition, technical factors, including selection of prediction equation, may be important when TBW is estimated from measured impedance.
Keyword Body fluid
Deuterium
Dilution technique
Impedance technique
Prediction equation
Accuracy
Technical error
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Mater Research Institute-UQ (MRI-UQ)
Official 2015 Collection
 
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