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Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity

(1) Background: The determination of body composition is an important method to investigate patients with obesity and to evaluate the efficacy of individualized medical interventions. Bioelectrical impedance-based methods are non-invasive and widely applied but need to be validated for their use in...

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Autores principales: Thajer, Alexandra, Skacel, Gabriele, Truschner, Katharina, Jorda, Anselm, Vasek, Martin, Horsak, Brian, Strempfl, Johanna, Kautzky-Willer, Alexandra, Kainberger, Franz, Greber-Platzer, Susanne
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8070058/
https://www.ncbi.nlm.nih.gov/pubmed/33920492
http://dx.doi.org/10.3390/children8040295
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author Thajer, Alexandra
Skacel, Gabriele
Truschner, Katharina
Jorda, Anselm
Vasek, Martin
Horsak, Brian
Strempfl, Johanna
Kautzky-Willer, Alexandra
Kainberger, Franz
Greber-Platzer, Susanne
author_facet Thajer, Alexandra
Skacel, Gabriele
Truschner, Katharina
Jorda, Anselm
Vasek, Martin
Horsak, Brian
Strempfl, Johanna
Kautzky-Willer, Alexandra
Kainberger, Franz
Greber-Platzer, Susanne
author_sort Thajer, Alexandra
collection PubMed
description (1) Background: The determination of body composition is an important method to investigate patients with obesity and to evaluate the efficacy of individualized medical interventions. Bioelectrical impedance-based methods are non-invasive and widely applied but need to be validated for their use in young patients with obesity. (2) Methods: We compiled data from three independent studies on children and adolescents with obesity, measuring body composition with two bioelectrical impedance-based devices (TANITA and BIACORPUS). For a small patient group, additional data were collected with air displacement plethysmography (BOD POD) and dual-energy X-ray absorptiometry (DXA). (3) Results: Our combined data on 123 patients (age: 6–18 years, body mass index (BMI): 21–59 kg/m²) and the individual studies showed that TANITA and BIACORPUS yield significantly different results on body composition, TANITA overestimating body fat percentage and fat mass relative to BIACORPUS and underestimating fat-free mass (p < 0.001 for all three parameters). A Bland–Altman plot indicated little agreement between methods, which produce clinically relevant differences for all three parameters. We detected gender-specific differences with both methods, with body fat percentage being lower (p < 0.01) and fat-free mass higher (p < 0.001) in males than females. (4) Conclusions: Both bioelectrical impedance-based methods provide significantly different results on body composition in young patients with obesity and thus cannot be used interchangeably, requiring adherence to a specific device for repetitive measurements to ascertain comparability of data.
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spelling pubmed-80700582021-04-26 Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity Thajer, Alexandra Skacel, Gabriele Truschner, Katharina Jorda, Anselm Vasek, Martin Horsak, Brian Strempfl, Johanna Kautzky-Willer, Alexandra Kainberger, Franz Greber-Platzer, Susanne Children (Basel) Article (1) Background: The determination of body composition is an important method to investigate patients with obesity and to evaluate the efficacy of individualized medical interventions. Bioelectrical impedance-based methods are non-invasive and widely applied but need to be validated for their use in young patients with obesity. (2) Methods: We compiled data from three independent studies on children and adolescents with obesity, measuring body composition with two bioelectrical impedance-based devices (TANITA and BIACORPUS). For a small patient group, additional data were collected with air displacement plethysmography (BOD POD) and dual-energy X-ray absorptiometry (DXA). (3) Results: Our combined data on 123 patients (age: 6–18 years, body mass index (BMI): 21–59 kg/m²) and the individual studies showed that TANITA and BIACORPUS yield significantly different results on body composition, TANITA overestimating body fat percentage and fat mass relative to BIACORPUS and underestimating fat-free mass (p < 0.001 for all three parameters). A Bland–Altman plot indicated little agreement between methods, which produce clinically relevant differences for all three parameters. We detected gender-specific differences with both methods, with body fat percentage being lower (p < 0.01) and fat-free mass higher (p < 0.001) in males than females. (4) Conclusions: Both bioelectrical impedance-based methods provide significantly different results on body composition in young patients with obesity and thus cannot be used interchangeably, requiring adherence to a specific device for repetitive measurements to ascertain comparability of data. MDPI 2021-04-11 /pmc/articles/PMC8070058/ /pubmed/33920492 http://dx.doi.org/10.3390/children8040295 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Thajer, Alexandra
Skacel, Gabriele
Truschner, Katharina
Jorda, Anselm
Vasek, Martin
Horsak, Brian
Strempfl, Johanna
Kautzky-Willer, Alexandra
Kainberger, Franz
Greber-Platzer, Susanne
Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity
title Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity
title_full Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity
title_fullStr Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity
title_full_unstemmed Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity
title_short Comparison of Bioelectrical Impedance-Based Methods on Body Composition in Young Patients with Obesity
title_sort comparison of bioelectrical impedance-based methods on body composition in young patients with obesity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8070058/
https://www.ncbi.nlm.nih.gov/pubmed/33920492
http://dx.doi.org/10.3390/children8040295
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