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Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing
We aimed to determine a method for prescribing a standing prosthetic leg length (ProsL) that results in an equivalent running biological leg length (BioL) for athletes with unilateral (UTTA) and bilateral transtibial amputations (BTTA). We measured standing leg length of ten non-amputee (NA) athlete...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10175537/ https://www.ncbi.nlm.nih.gov/pubmed/37169823 http://dx.doi.org/10.1038/s41598-023-34346-x |
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author | Zhang-Lea, Janet H. Tacca, Joshua R. Beck, Owen N. Taboga, Paolo Grabowski, Alena M. |
author_facet | Zhang-Lea, Janet H. Tacca, Joshua R. Beck, Owen N. Taboga, Paolo Grabowski, Alena M. |
author_sort | Zhang-Lea, Janet H. |
collection | PubMed |
description | We aimed to determine a method for prescribing a standing prosthetic leg length (ProsL) that results in an equivalent running biological leg length (BioL) for athletes with unilateral (UTTA) and bilateral transtibial amputations (BTTA). We measured standing leg length of ten non-amputee (NA) athletes, ten athletes with UTTA, and five athletes with BTTA. All athletes performed treadmill running trials from 3 m/s to their maximum speed. We calculated standing and running BioL and ProsL lengths and assessed the running-to-standing leg length ratio (L(ratio)) at three instances during ground contact: touchdown, mid-stance, and take-off. Athletes with UTTA had 2.4 cm longer standing ProsL than BioL length (p = 0.030), but their ProsL length were up to 3.3 cm shorter at touchdown and 4.1 cm shorter at mid-stance than BioL, at 3–11.5 m/s. At touchdown, mid-stance, and take-off, athletes with BTTA had 0.01–0.05 lower L(ratio) at 3 m/s (p < 0.001) and 0.03–0.07 lower L(ratio) at 10 m/s (p < 0.001) in their ProsL compared to the BioL of NA athletes. During running, ProsL were consistently shorter than BioL. To achieve equivalent running leg lengths at touchdown and take-off, athletes with UTTA should set their running-specific prosthesis height so that their standing ProsL length is 2.8–4.5% longer than their BioL length, and athletes with BTTA should set their running-specific prosthesis height so that their standing ProsL lengths are at least 2.1–3.9% longer than their presumed BioL length. Setting ProsL length to match presumed biological dimensions during standing results in shorter legs during running. |
format | Online Article Text |
id | pubmed-10175537 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-101755372023-05-13 Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing Zhang-Lea, Janet H. Tacca, Joshua R. Beck, Owen N. Taboga, Paolo Grabowski, Alena M. Sci Rep Article We aimed to determine a method for prescribing a standing prosthetic leg length (ProsL) that results in an equivalent running biological leg length (BioL) for athletes with unilateral (UTTA) and bilateral transtibial amputations (BTTA). We measured standing leg length of ten non-amputee (NA) athletes, ten athletes with UTTA, and five athletes with BTTA. All athletes performed treadmill running trials from 3 m/s to their maximum speed. We calculated standing and running BioL and ProsL lengths and assessed the running-to-standing leg length ratio (L(ratio)) at three instances during ground contact: touchdown, mid-stance, and take-off. Athletes with UTTA had 2.4 cm longer standing ProsL than BioL length (p = 0.030), but their ProsL length were up to 3.3 cm shorter at touchdown and 4.1 cm shorter at mid-stance than BioL, at 3–11.5 m/s. At touchdown, mid-stance, and take-off, athletes with BTTA had 0.01–0.05 lower L(ratio) at 3 m/s (p < 0.001) and 0.03–0.07 lower L(ratio) at 10 m/s (p < 0.001) in their ProsL compared to the BioL of NA athletes. During running, ProsL were consistently shorter than BioL. To achieve equivalent running leg lengths at touchdown and take-off, athletes with UTTA should set their running-specific prosthesis height so that their standing ProsL length is 2.8–4.5% longer than their BioL length, and athletes with BTTA should set their running-specific prosthesis height so that their standing ProsL lengths are at least 2.1–3.9% longer than their presumed BioL length. Setting ProsL length to match presumed biological dimensions during standing results in shorter legs during running. Nature Publishing Group UK 2023-05-11 /pmc/articles/PMC10175537/ /pubmed/37169823 http://dx.doi.org/10.1038/s41598-023-34346-x Text en © The Author(s) 2023, corrected publication 2023 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 Zhang-Lea, Janet H. Tacca, Joshua R. Beck, Owen N. Taboga, Paolo Grabowski, Alena M. Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
title | Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
title_full | Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
title_fullStr | Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
title_full_unstemmed | Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
title_short | Equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
title_sort | equivalent running leg lengths require prosthetic legs to be longer than biological legs during standing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10175537/ https://www.ncbi.nlm.nih.gov/pubmed/37169823 http://dx.doi.org/10.1038/s41598-023-34346-x |
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