Assessment of Body Composition in Subjects with Metabolic Syndrome Comparing Single-Frequency Bioelectrical Impedance Analysis and Bioelectrical Spectroscopy.

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Bibtex

@article{050aa0a0a37545aaa78486457d0361d0,
title = "Assessment of Body Composition in Subjects with Metabolic Syndrome Comparing Single-Frequency Bioelectrical Impedance Analysis and Bioelectrical Spectroscopy.",
abstract = "Abstract Background: The aim of this study was to investigate the agreement between body composition measurements made with two methods-single-frequency bioelectrical impedance analysis (SF-BIA) and bioelectrical impedance spectroscopy (BIS). Methods: The body composition measurements using SF-BIA and BIS were performed seven times during 6 months on 41 patients (13 men and 28 women) with metabolic syndrome who were taking part in a dietary intervention study. Results: The mean [standard deviation (SD)] fat mass (FM) and median [interquartile range (IQR)] FM{\%} measured with SF-BIA were 32.7 (6.7) kg and 36.3 (30.3-39.3){\%}, respectively, compared with 38.2 (8.7) kg and 40.9 (35.5-45.6){\%}, respectively, using BIS. The median (IQR) fat-free mass (FFM) was 60.0 (53.3-73.5) kg according to SF-BIA and 55.4 (48.8-66.5) kg according to BIS. These results obtained with the two methods were significantly different (P<0.001). Still highly significant correlations were found between the results obtained with SF-BIA and BIS for FM and FFM (all r≥0.89, P<0.001). Using Bland-Altman analysis, the bias was found to be -5.4 (4.1) kg for FM, -5.5 (3.7){\%} for FM{\%}, and 5.4 (4.1) kg for FFM. Rather wide limits of agreement were found for FM, FM{\%}, and FFM. Conclusion: Body composition data obtained using SF-BIA and BIS in subjects with metabolic syndrome were highly correlated but not interchangeable. FM was systematically lower when using SF-BIA than when using BIS.",
author = "Lieselotte Cloetens and {Johansson Persson}, Anna and Hannah Helgegren and Mona Landin-Olsson and Matti Uusitupa and Bj{\"o}rn {\AA}kesson and Gunilla {\"O}nning",
year = "2015",
doi = "10.1089/met.2014.0130",
language = "English",
volume = "13",
pages = "91--98",
journal = "Metabolic syndrome and related disorders",
issn = "1557-8518",
publisher = "Mary Ann Liebert, Inc.",
number = "2",

}