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Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample

BACKGROUND/OBJECTIVES: Several studies have addressed the validity of ultrasound (US) for body composition assessment, but few have evaluated its reliability. This study aimed to determine the reliability of percent body fat (%BF) estimates using A-mode US in a heterogeneous sample. SUBJECTS/METHODS...

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Autores principales: Miclos-Balica, Monica, Muntean, Paul, Schick, Falk, Haragus, Horia G., Glisici, Bogdan, Pupazan, Vasile, Neagu, Adrian, Neagu, Monica
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7943421/
https://www.ncbi.nlm.nih.gov/pubmed/32917960
http://dx.doi.org/10.1038/s41430-020-00743-y
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author Miclos-Balica, Monica
Muntean, Paul
Schick, Falk
Haragus, Horia G.
Glisici, Bogdan
Pupazan, Vasile
Neagu, Adrian
Neagu, Monica
author_facet Miclos-Balica, Monica
Muntean, Paul
Schick, Falk
Haragus, Horia G.
Glisici, Bogdan
Pupazan, Vasile
Neagu, Adrian
Neagu, Monica
author_sort Miclos-Balica, Monica
collection PubMed
description BACKGROUND/OBJECTIVES: Several studies have addressed the validity of ultrasound (US) for body composition assessment, but few have evaluated its reliability. This study aimed to determine the reliability of percent body fat (%BF) estimates using A-mode US in a heterogeneous sample. SUBJECTS/METHODS: A group of 144 healthy adults (81 men and 63 women), 30.4 (10.1) years (mean (SD)), BMI 24.6 (4.7) kg/m(2), completed 6 consecutive measurements of the subcutaneous fat layer thickness at 8 anatomical sites. The measurements were done, alternatively, by two testers, using a BodyMetrix™ instrument. To compute %BF, 4 formulas from the BodyView™ software were applied: 7-sites Jackson and Pollock, 3-sites Jackson and Pollock, 3-sites Pollock, and 1-point biceps. RESULTS: The formula with the most anatomic sites provided the best reliability quantified by the following measures: intraclass correlation coefficient (ICC) = 0.979 for Tester 1 (T1) and 0.985 for T2, technical error of measurement (TEM) = 1.07% BF for T1 and 0.89% BF for T2, and minimal detectable change (MDC) = 2.95% BF for T1, and 2.47% BF for T2. The intertester bias was −0.5% BF, whereas the intertester ICC was 0.972. The intertester MDC was 3.43% BF for the entire sample, 3.24% BF for men, and 3.65% BF for women. CONCLUSIONS: A-mode US is highly reliable for %BF assessments, but it is more precise for men than for women. Examiner performance is a source of variability that needs to be mitigated to further improve the precision of this technique.
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spelling pubmed-79434212021-03-28 Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample Miclos-Balica, Monica Muntean, Paul Schick, Falk Haragus, Horia G. Glisici, Bogdan Pupazan, Vasile Neagu, Adrian Neagu, Monica Eur J Clin Nutr Article BACKGROUND/OBJECTIVES: Several studies have addressed the validity of ultrasound (US) for body composition assessment, but few have evaluated its reliability. This study aimed to determine the reliability of percent body fat (%BF) estimates using A-mode US in a heterogeneous sample. SUBJECTS/METHODS: A group of 144 healthy adults (81 men and 63 women), 30.4 (10.1) years (mean (SD)), BMI 24.6 (4.7) kg/m(2), completed 6 consecutive measurements of the subcutaneous fat layer thickness at 8 anatomical sites. The measurements were done, alternatively, by two testers, using a BodyMetrix™ instrument. To compute %BF, 4 formulas from the BodyView™ software were applied: 7-sites Jackson and Pollock, 3-sites Jackson and Pollock, 3-sites Pollock, and 1-point biceps. RESULTS: The formula with the most anatomic sites provided the best reliability quantified by the following measures: intraclass correlation coefficient (ICC) = 0.979 for Tester 1 (T1) and 0.985 for T2, technical error of measurement (TEM) = 1.07% BF for T1 and 0.89% BF for T2, and minimal detectable change (MDC) = 2.95% BF for T1, and 2.47% BF for T2. The intertester bias was −0.5% BF, whereas the intertester ICC was 0.972. The intertester MDC was 3.43% BF for the entire sample, 3.24% BF for men, and 3.65% BF for women. CONCLUSIONS: A-mode US is highly reliable for %BF assessments, but it is more precise for men than for women. Examiner performance is a source of variability that needs to be mitigated to further improve the precision of this technique. Nature Publishing Group UK 2020-09-11 2021 /pmc/articles/PMC7943421/ /pubmed/32917960 http://dx.doi.org/10.1038/s41430-020-00743-y Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Miclos-Balica, Monica
Muntean, Paul
Schick, Falk
Haragus, Horia G.
Glisici, Bogdan
Pupazan, Vasile
Neagu, Adrian
Neagu, Monica
Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample
title Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample
title_full Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample
title_fullStr Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample
title_full_unstemmed Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample
title_short Reliability of body composition assessment using A-mode ultrasound in a heterogeneous sample
title_sort reliability of body composition assessment using a-mode ultrasound in a heterogeneous sample
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7943421/
https://www.ncbi.nlm.nih.gov/pubmed/32917960
http://dx.doi.org/10.1038/s41430-020-00743-y
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