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

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_E2681B6E502B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Duty factor and foot-strike pattern do not represent similar running pattern at the individual level.
Journal
Scientific reports
Author(s)
Patoz A., Lussiana T., Breine B., Gindre C., Malatesta D.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Publication state
Published
Issued date
29/07/2022
Peer-reviewed
Oui
Volume
12
Number
1
Pages
13061
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
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.
Keywords
Biomechanical Phenomena, Exercise Test, Foot, Gait, Mechanical Phenomena, Running
Pubmed
Open Access
Yes
Create date
01/08/2022 16:21
Last modification date
21/11/2022 9:14
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