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The Conventional Gait Model’s sensitivity to lower-limb marker placement
Clinical gait analysis supports treatment decisions for patients with motor disorders. Measurement reproducibility is affected by extrinsic errors such as marker misplacement—considered the main factor in gait analysis variability. However, how marker placement affects output kinematics is not compl...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9392770/ https://www.ncbi.nlm.nih.gov/pubmed/35987823 http://dx.doi.org/10.1038/s41598-022-18546-5 |
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author | Fonseca, M. Bergere, M. Candido, J. Leboeuf, F. Dumas, R. Armand, S. |
author_facet | Fonseca, M. Bergere, M. Candido, J. Leboeuf, F. Dumas, R. Armand, S. |
author_sort | Fonseca, M. |
collection | PubMed |
description | Clinical gait analysis supports treatment decisions for patients with motor disorders. Measurement reproducibility is affected by extrinsic errors such as marker misplacement—considered the main factor in gait analysis variability. However, how marker placement affects output kinematics is not completely understood. The present study aimed to evaluate the Conventional Gait Model’s sensitivity to marker placement. Using a dataset of kinematics for 20 children, eight lower-limb markers were virtually displaced by 10 mm in all four planes, and all the displacement combinations were recalculated. Root-mean-square deviation angles were calculated for each simulation with respect to the original kinematics. The marker movements with the greatest impact were for the femoral and tibial wands together with the lateral femoral epicondyle marker when displaced in the anterior–posterior axis. When displaced alone, the femoral wand was responsible for a deviation of 7.3° (± 1.8°) in hip rotation. Transversal plane measurements were affected most, with around 40% of simulations resulting in an effect greater than the acceptable limit of 5°. This study also provided insight into which markers need to be placed very carefully to obtain more reliable gait data. |
format | Online Article Text |
id | pubmed-9392770 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-93927702022-08-22 The Conventional Gait Model’s sensitivity to lower-limb marker placement Fonseca, M. Bergere, M. Candido, J. Leboeuf, F. Dumas, R. Armand, S. Sci Rep Article Clinical gait analysis supports treatment decisions for patients with motor disorders. Measurement reproducibility is affected by extrinsic errors such as marker misplacement—considered the main factor in gait analysis variability. However, how marker placement affects output kinematics is not completely understood. The present study aimed to evaluate the Conventional Gait Model’s sensitivity to marker placement. Using a dataset of kinematics for 20 children, eight lower-limb markers were virtually displaced by 10 mm in all four planes, and all the displacement combinations were recalculated. Root-mean-square deviation angles were calculated for each simulation with respect to the original kinematics. The marker movements with the greatest impact were for the femoral and tibial wands together with the lateral femoral epicondyle marker when displaced in the anterior–posterior axis. When displaced alone, the femoral wand was responsible for a deviation of 7.3° (± 1.8°) in hip rotation. Transversal plane measurements were affected most, with around 40% of simulations resulting in an effect greater than the acceptable limit of 5°. This study also provided insight into which markers need to be placed very carefully to obtain more reliable gait data. Nature Publishing Group UK 2022-08-20 /pmc/articles/PMC9392770/ /pubmed/35987823 http://dx.doi.org/10.1038/s41598-022-18546-5 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Fonseca, M. Bergere, M. Candido, J. Leboeuf, F. Dumas, R. Armand, S. The Conventional Gait Model’s sensitivity to lower-limb marker placement |
title | The Conventional Gait Model’s sensitivity to lower-limb marker placement |
title_full | The Conventional Gait Model’s sensitivity to lower-limb marker placement |
title_fullStr | The Conventional Gait Model’s sensitivity to lower-limb marker placement |
title_full_unstemmed | The Conventional Gait Model’s sensitivity to lower-limb marker placement |
title_short | The Conventional Gait Model’s sensitivity to lower-limb marker placement |
title_sort | conventional gait model’s sensitivity to lower-limb marker placement |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9392770/ https://www.ncbi.nlm.nih.gov/pubmed/35987823 http://dx.doi.org/10.1038/s41598-022-18546-5 |
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