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Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management
Bioelectrical impedance analysis (BIA) is used to analyze human body composition by applying a small alternating current through the body and measuring the impedance. The smaller the electrode of a BIA device, the larger the impedance measurement error due to the contact resistance between the elect...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7806851/ https://www.ncbi.nlm.nih.gov/pubmed/33441675 http://dx.doi.org/10.1038/s41598-020-79667-3 |
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author | Jung, Myoung Hoon Namkoong, Kak Lee, Yeolho Koh, Young Jun Eom, Kunsun Jang, Hyeongseok Jung, Wonjong Bae, Jungmok Park, Jongae |
author_facet | Jung, Myoung Hoon Namkoong, Kak Lee, Yeolho Koh, Young Jun Eom, Kunsun Jang, Hyeongseok Jung, Wonjong Bae, Jungmok Park, Jongae |
author_sort | Jung, Myoung Hoon |
collection | PubMed |
description | Bioelectrical impedance analysis (BIA) is used to analyze human body composition by applying a small alternating current through the body and measuring the impedance. The smaller the electrode of a BIA device, the larger the impedance measurement error due to the contact resistance between the electrode and human skin. Therefore, most commercial BIA devices utilize electrodes that are large enough (i.e., 4 × 1400 mm(2)) to counteract the contact resistance effect. We propose a novel method of compensating for contact resistance by performing 4-point and 2-point measurements alternately such that body impedance can be accurately estimated even with considerably smaller electrodes (outer electrodes: 68 mm(2); inner electrodes: 128 mm(2)). Additionally, we report the use of a wrist-wearable BIA device with single-finger contact measurement and clinical test results from 203 participants at Seoul St. Mary’s Hospital. The correlation coefficient and standard error of estimate of percentage body fat were 0.899 and 3.76%, respectively, in comparison with dual-energy X-ray absorptiometry. This result exceeds the performance level of the commercial upper-body portable body fat analyzer (Omron HBF-306). With a measurement time of 7 s, this sensor technology is expected to provide a new possibility of a wearable bioelectrical impedance analyzer, toward obesity management. |
format | Online Article Text |
id | pubmed-7806851 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78068512021-01-14 Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management Jung, Myoung Hoon Namkoong, Kak Lee, Yeolho Koh, Young Jun Eom, Kunsun Jang, Hyeongseok Jung, Wonjong Bae, Jungmok Park, Jongae Sci Rep Article Bioelectrical impedance analysis (BIA) is used to analyze human body composition by applying a small alternating current through the body and measuring the impedance. The smaller the electrode of a BIA device, the larger the impedance measurement error due to the contact resistance between the electrode and human skin. Therefore, most commercial BIA devices utilize electrodes that are large enough (i.e., 4 × 1400 mm(2)) to counteract the contact resistance effect. We propose a novel method of compensating for contact resistance by performing 4-point and 2-point measurements alternately such that body impedance can be accurately estimated even with considerably smaller electrodes (outer electrodes: 68 mm(2); inner electrodes: 128 mm(2)). Additionally, we report the use of a wrist-wearable BIA device with single-finger contact measurement and clinical test results from 203 participants at Seoul St. Mary’s Hospital. The correlation coefficient and standard error of estimate of percentage body fat were 0.899 and 3.76%, respectively, in comparison with dual-energy X-ray absorptiometry. This result exceeds the performance level of the commercial upper-body portable body fat analyzer (Omron HBF-306). With a measurement time of 7 s, this sensor technology is expected to provide a new possibility of a wearable bioelectrical impedance analyzer, toward obesity management. Nature Publishing Group UK 2021-01-13 /pmc/articles/PMC7806851/ /pubmed/33441675 http://dx.doi.org/10.1038/s41598-020-79667-3 Text en © The Author(s) 2021 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Jung, Myoung Hoon Namkoong, Kak Lee, Yeolho Koh, Young Jun Eom, Kunsun Jang, Hyeongseok Jung, Wonjong Bae, Jungmok Park, Jongae Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
title | Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
title_full | Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
title_fullStr | Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
title_full_unstemmed | Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
title_short | Wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
title_sort | wrist-wearable bioelectrical impedance analyzer with miniature electrodes for daily obesity management |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7806851/ https://www.ncbi.nlm.nih.gov/pubmed/33441675 http://dx.doi.org/10.1038/s41598-020-79667-3 |
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