Cargando…

Duty factor and foot-strike pattern do not represent similar running pattern at the individual level

Runners were classified using their duty factor (DF) and using their foot-strike pattern (FSP; rearfoot, midfoot, or forefoot strikers), determined from their foot-strike angle (FSA). High and low DF runners showed different FSPs but DF was assumed to not only reflect what happens at initial contact...

Descripción completa

Detalles Bibliográficos
Autores principales: Patoz, Aurélien, Lussiana, Thibault, Breine, Bastiaan, Gindre, Cyrille, Malatesta, Davide
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338241/
https://www.ncbi.nlm.nih.gov/pubmed/35906382
http://dx.doi.org/10.1038/s41598-022-17274-0
_version_ 1784759924674265088
author Patoz, Aurélien
Lussiana, Thibault
Breine, Bastiaan
Gindre, Cyrille
Malatesta, Davide
author_facet Patoz, Aurélien
Lussiana, Thibault
Breine, Bastiaan
Gindre, Cyrille
Malatesta, Davide
author_sort Patoz, Aurélien
collection PubMed
description Runners were classified using their duty factor (DF) and using their foot-strike pattern (FSP; rearfoot, midfoot, or forefoot strikers), determined from their foot-strike angle (FSA). High and low DF runners showed different FSPs but DF was assumed to not only reflect what happens at initial contact with the ground (more global than FSP/FSA). Hence, FSP and DF groups should not necessarily be constituted by the same runners. However, the relation between FSP and DF groups has never been investigated, leading to the aim of this study. One hundred runners ran at 9, 11, and 13 km/h. Force data (1000 Hz) and whole-body kinematics (200 Hz) were acquired by an instrumented treadmill and optoelectronic system and were used to classify runners according to their FSA and DF. Weak correlations were obtained between FSA and DF values and a sensitivity of 50% was reported between FSP and DF groups, i.e., only one in two runners was attributed to the DF group supposedly corresponding to the FSP group. Therefore, ‘local’ FSP/FSA and DF do not represent similar running pattern information when investigated at the individual level and DF should be preferred to FSP/FSA when evaluating the global running pattern of a runner.
format Online
Article
Text
id pubmed-9338241
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-93382412022-07-31 Duty factor and foot-strike pattern do not represent similar running pattern at the individual level Patoz, Aurélien Lussiana, Thibault Breine, Bastiaan Gindre, Cyrille Malatesta, Davide Sci Rep Article Runners were classified using their duty factor (DF) and using their foot-strike pattern (FSP; rearfoot, midfoot, or forefoot strikers), determined from their foot-strike angle (FSA). High and low DF runners showed different FSPs but DF was assumed to not only reflect what happens at initial contact with the ground (more global than FSP/FSA). Hence, FSP and DF groups should not necessarily be constituted by the same runners. However, the relation between FSP and DF groups has never been investigated, leading to the aim of this study. One hundred runners ran at 9, 11, and 13 km/h. Force data (1000 Hz) and whole-body kinematics (200 Hz) were acquired by an instrumented treadmill and optoelectronic system and were used to classify runners according to their FSA and DF. Weak correlations were obtained between FSA and DF values and a sensitivity of 50% was reported between FSP and DF groups, i.e., only one in two runners was attributed to the DF group supposedly corresponding to the FSP group. Therefore, ‘local’ FSP/FSA and DF do not represent similar running pattern information when investigated at the individual level and DF should be preferred to FSP/FSA when evaluating the global running pattern of a runner. Nature Publishing Group UK 2022-07-29 /pmc/articles/PMC9338241/ /pubmed/35906382 http://dx.doi.org/10.1038/s41598-022-17274-0 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
Patoz, Aurélien
Lussiana, Thibault
Breine, Bastiaan
Gindre, Cyrille
Malatesta, Davide
Duty factor and foot-strike pattern do not represent similar running pattern at the individual level
title Duty factor and foot-strike pattern do not represent similar running pattern at the individual level
title_full Duty factor and foot-strike pattern do not represent similar running pattern at the individual level
title_fullStr Duty factor and foot-strike pattern do not represent similar running pattern at the individual level
title_full_unstemmed Duty factor and foot-strike pattern do not represent similar running pattern at the individual level
title_short Duty factor and foot-strike pattern do not represent similar running pattern at the individual level
title_sort duty factor and foot-strike pattern do not represent similar running pattern at the individual level
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338241/
https://www.ncbi.nlm.nih.gov/pubmed/35906382
http://dx.doi.org/10.1038/s41598-022-17274-0
work_keys_str_mv AT patozaurelien dutyfactorandfootstrikepatterndonotrepresentsimilarrunningpatternattheindividuallevel
AT lussianathibault dutyfactorandfootstrikepatterndonotrepresentsimilarrunningpatternattheindividuallevel
AT breinebastiaan dutyfactorandfootstrikepatterndonotrepresentsimilarrunningpatternattheindividuallevel
AT gindrecyrille dutyfactorandfootstrikepatterndonotrepresentsimilarrunningpatternattheindividuallevel
AT malatestadavide dutyfactorandfootstrikepatterndonotrepresentsimilarrunningpatternattheindividuallevel