NDLI: Comparison of body fat-free masses calculated from hand-to-foot and foot-to-foot resistances with DXA measurements

Content Provider	Springer Nature Link
Author	Bousbiat, Sana Jaffrin, Michel Y. Dongmo, Edwige
Copyright Year	2011
Abstract	This article compares the determination of body fat-free-mass (FFM) by impedance, using either hand-to-foot resistance (R$_{13}$) or foot-to-foot one (R$_{34}$) from comparison with dual X-ray absorptiometry (DXA) measurements in a normal population. The first goal was to see if the foot-to-foot resistance used in body fat analysers provides less accurate information for body FFM than the hand-to-foot one used by medical impedance-meters. Another goal was to compare the prediction accuracy of six different regression equations of FFM for each sex and for each resistance relatively to DXA. The impedancemeter used in this study was a Tefal prototype with 4 plantar electrodes and 4 additional electrodes for the hands and providing hand-to-foot and foot-to-foot resistances. Coefficients of these correlations were determined by comparison with FFM measured by DXA in a 1st cohort of 170 healthy adults. For an independent validation, these equations were tested in a 2nd cohort of 86 adults who underwent the same impedance and DXA protocols, using Student’s paired t-tests. The accuracy of FFM prediction increased generally with the number of physiologic parameters included in the regression, but none of our equations gave FFM predictions significantly different from DXA. FFM calculated from the foot-to-foot resistance were closer to DXA values than those calculated from hand-to-foot resistance, as their average P-value of comparison with DXA was higher at 0.695 against 0.387 for R$_{13}$.
Starting Page	1329
Ending Page	1336
Page Count	8
File Format	PDF
ISSN	01400118
Journal	Medical and Biological Engineering and Computing
Volume Number	49
Issue Number	11
e-ISSN	17410444
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-09-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bioimpedance analysis Fat-free mass prediction Electrode position Human Physiology Biomedical Engineering Imaging Radiology Computer Applications
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering Computer Science Applications

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