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Sex-related differences in coordination and variability among foot joints during running
BACKGROUND: Women, as compared with men, have a higher proportion of injuries in the ankle/foot region. However, the reason for this sex-related difference in foot injuries remains unclear. Recently, joint coordination and variability of coordination have been suggested to be a critical index for de...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142367/ https://www.ncbi.nlm.nih.gov/pubmed/30237827 http://dx.doi.org/10.1186/s13047-018-0295-9 |
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author | Takabayashi, Tomoya Edama, Mutsuaki Inai, Takuma Kubo, Masayoshi |
author_facet | Takabayashi, Tomoya Edama, Mutsuaki Inai, Takuma Kubo, Masayoshi |
author_sort | Takabayashi, Tomoya |
collection | PubMed |
description | BACKGROUND: Women, as compared with men, have a higher proportion of injuries in the ankle/foot region. However, the reason for this sex-related difference in foot injuries remains unclear. Recently, joint coordination and variability of coordination have been suggested to be a critical index for defining both the state of injury and the potential risk of injury. The purpose of this study was to investigate sex-related differences in coordination and variability among the foot joints during running. METHODS: Twelve healthy men and 12 healthy women ran on a treadmill. A modified vector coding technique was used to identify coordination and variability among foot joints involving the shank, rearfoot, midfoot, and forefoot segments, and categorized into the following four coordination patterns: in-phase with proximal dominancy, in-phase with distal dominancy, anti-phase with proximal dominancy, and anti-phase with distal dominancy. RESULTS: There were no differences in all spatiotemporal parameters and in the foot strike angle between men and women. Coordination of variability of the foot joints during running was similar between men and women, but the anti-phase with proximal dominancy in proportion of frontal rearfoot-shank vs. midfoot-rearfoot couple (men; 7.2%, women; 13.9%) and midfoot-rearfoot vs. forefoot-midfoot couple (men; 18.6%, women; 39.8%) in women was significantly increased compared to that in men. Other all coordination of the foot joints during running differed between men and women, and effect sizes of these parameters were all large. CONCLUSION: The results may be useful for understanding the underlying mechanism contributing to differences in injury risk in men and women, and may provide novel data on foot joint coordination and variability that could be used as reference data for both biomechanical and clinical running studies. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s13047-018-0295-9) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6142367 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-61423672018-09-20 Sex-related differences in coordination and variability among foot joints during running Takabayashi, Tomoya Edama, Mutsuaki Inai, Takuma Kubo, Masayoshi J Foot Ankle Res Research BACKGROUND: Women, as compared with men, have a higher proportion of injuries in the ankle/foot region. However, the reason for this sex-related difference in foot injuries remains unclear. Recently, joint coordination and variability of coordination have been suggested to be a critical index for defining both the state of injury and the potential risk of injury. The purpose of this study was to investigate sex-related differences in coordination and variability among the foot joints during running. METHODS: Twelve healthy men and 12 healthy women ran on a treadmill. A modified vector coding technique was used to identify coordination and variability among foot joints involving the shank, rearfoot, midfoot, and forefoot segments, and categorized into the following four coordination patterns: in-phase with proximal dominancy, in-phase with distal dominancy, anti-phase with proximal dominancy, and anti-phase with distal dominancy. RESULTS: There were no differences in all spatiotemporal parameters and in the foot strike angle between men and women. Coordination of variability of the foot joints during running was similar between men and women, but the anti-phase with proximal dominancy in proportion of frontal rearfoot-shank vs. midfoot-rearfoot couple (men; 7.2%, women; 13.9%) and midfoot-rearfoot vs. forefoot-midfoot couple (men; 18.6%, women; 39.8%) in women was significantly increased compared to that in men. Other all coordination of the foot joints during running differed between men and women, and effect sizes of these parameters were all large. CONCLUSION: The results may be useful for understanding the underlying mechanism contributing to differences in injury risk in men and women, and may provide novel data on foot joint coordination and variability that could be used as reference data for both biomechanical and clinical running studies. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s13047-018-0295-9) contains supplementary material, which is available to authorized users. BioMed Central 2018-09-17 /pmc/articles/PMC6142367/ /pubmed/30237827 http://dx.doi.org/10.1186/s13047-018-0295-9 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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 Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Takabayashi, Tomoya Edama, Mutsuaki Inai, Takuma Kubo, Masayoshi Sex-related differences in coordination and variability among foot joints during running |
title | Sex-related differences in coordination and variability among foot joints during running |
title_full | Sex-related differences in coordination and variability among foot joints during running |
title_fullStr | Sex-related differences in coordination and variability among foot joints during running |
title_full_unstemmed | Sex-related differences in coordination and variability among foot joints during running |
title_short | Sex-related differences in coordination and variability among foot joints during running |
title_sort | sex-related differences in coordination and variability among foot joints during running |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142367/ https://www.ncbi.nlm.nih.gov/pubmed/30237827 http://dx.doi.org/10.1186/s13047-018-0295-9 |
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