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Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase

BACKGROUND: This study evaluated the 3D angle between the joint moment and the joint angular velocity vectors at the intrinsic foot joints, and investigated if these joints are predominantly driven or stabilized during gait. METHODS: The participants were 20 asymptomatic subjects. A four-segment kin...

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Autores principales: Deleu, Paul-André, Chèze, Laurence, Dumas, Raphaël, Besse, Jean-Luc, Leemrijse, Thibaut, Devos Bevernage, Bernhard, Birch, Ivan, Naaim, Alexandre
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7068936/
https://www.ncbi.nlm.nih.gov/pubmed/32164783
http://dx.doi.org/10.1186/s13047-020-0381-7
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author Deleu, Paul-André
Chèze, Laurence
Dumas, Raphaël
Besse, Jean-Luc
Leemrijse, Thibaut
Devos Bevernage, Bernhard
Birch, Ivan
Naaim, Alexandre
author_facet Deleu, Paul-André
Chèze, Laurence
Dumas, Raphaël
Besse, Jean-Luc
Leemrijse, Thibaut
Devos Bevernage, Bernhard
Birch, Ivan
Naaim, Alexandre
author_sort Deleu, Paul-André
collection PubMed
description BACKGROUND: This study evaluated the 3D angle between the joint moment and the joint angular velocity vectors at the intrinsic foot joints, and investigated if these joints are predominantly driven or stabilized during gait. METHODS: The participants were 20 asymptomatic subjects. A four-segment kinetic foot model was used to calculate and estimate intrinsic foot joint moments, powers and angular velocities during gait. 3D angles between the joint moment and the joint angular velocity vectors were calculated for the intrinsic foot joints defined as follows: ankle joint motion described between the foot and the shank for the one-segment foot model (hereafter referred as Ankle), and between the calcaneus and the shank for the multi-segment foot model (hereafter referred as Shank-Calcaneus); joint motion described between calcaneus and midfoot segments (hereafter referred as Chopart joint); joint motion described between midfoot and metatarsus segments (hereafter referred as Lisfranc joint); joint motion described between first phalanx and first metatarsal (hereafter referred as First Metatarso-Phalangeal joint). When the vectors were approximately aligned, the moment was considered to result in propulsion (3D angle <60(o)) or resistance (3D angle >120(o)) at the joint. When the vectors are approximately orthogonal (3D angle close to 90°), the moment was considered to stabilize the joint. RESULTS: The results showed that the four intrinsic joints of the foot are never fully propelling, resisting or being stabilized, but are instead subject to a combination of stabilization with propulsion or resistance during the majority of the stance phase of gait. However, the results also show that during pre-swing all four the joints are subject to moments that result purely in propulsion. At heel off, the propulsive configuration appears for the Lisfranc joint first at terminal stance, then for the other foot joints at pre-swing in the following order: Ankle, Chopart joint and First Metatarso-Phalangeal joint. CONCLUSIONS: Intrinsic foot joints adopt a stabilized-resistive configuration during the majority of the stance phase, with the exception of pre-swing during which all joints were found to adopt a propulsive configuration. The notion of stabilization, resistance and propulsion should be further investigated in subjects with foot and ankle disorders.
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spelling pubmed-70689362020-03-18 Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase Deleu, Paul-André Chèze, Laurence Dumas, Raphaël Besse, Jean-Luc Leemrijse, Thibaut Devos Bevernage, Bernhard Birch, Ivan Naaim, Alexandre J Foot Ankle Res Research BACKGROUND: This study evaluated the 3D angle between the joint moment and the joint angular velocity vectors at the intrinsic foot joints, and investigated if these joints are predominantly driven or stabilized during gait. METHODS: The participants were 20 asymptomatic subjects. A four-segment kinetic foot model was used to calculate and estimate intrinsic foot joint moments, powers and angular velocities during gait. 3D angles between the joint moment and the joint angular velocity vectors were calculated for the intrinsic foot joints defined as follows: ankle joint motion described between the foot and the shank for the one-segment foot model (hereafter referred as Ankle), and between the calcaneus and the shank for the multi-segment foot model (hereafter referred as Shank-Calcaneus); joint motion described between calcaneus and midfoot segments (hereafter referred as Chopart joint); joint motion described between midfoot and metatarsus segments (hereafter referred as Lisfranc joint); joint motion described between first phalanx and first metatarsal (hereafter referred as First Metatarso-Phalangeal joint). When the vectors were approximately aligned, the moment was considered to result in propulsion (3D angle <60(o)) or resistance (3D angle >120(o)) at the joint. When the vectors are approximately orthogonal (3D angle close to 90°), the moment was considered to stabilize the joint. RESULTS: The results showed that the four intrinsic joints of the foot are never fully propelling, resisting or being stabilized, but are instead subject to a combination of stabilization with propulsion or resistance during the majority of the stance phase of gait. However, the results also show that during pre-swing all four the joints are subject to moments that result purely in propulsion. At heel off, the propulsive configuration appears for the Lisfranc joint first at terminal stance, then for the other foot joints at pre-swing in the following order: Ankle, Chopart joint and First Metatarso-Phalangeal joint. CONCLUSIONS: Intrinsic foot joints adopt a stabilized-resistive configuration during the majority of the stance phase, with the exception of pre-swing during which all joints were found to adopt a propulsive configuration. The notion of stabilization, resistance and propulsion should be further investigated in subjects with foot and ankle disorders. BioMed Central 2020-03-12 /pmc/articles/PMC7068936/ /pubmed/32164783 http://dx.doi.org/10.1186/s13047-020-0381-7 Text en © The Author(s). 2020 Open AccessThis 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/. 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 in a credit line to the data.
spellingShingle Research
Deleu, Paul-André
Chèze, Laurence
Dumas, Raphaël
Besse, Jean-Luc
Leemrijse, Thibaut
Devos Bevernage, Bernhard
Birch, Ivan
Naaim, Alexandre
Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
title Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
title_full Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
title_fullStr Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
title_full_unstemmed Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
title_short Intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
title_sort intrinsic foot joints adapt a stabilized-resistive configuration during the stance phase
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7068936/
https://www.ncbi.nlm.nih.gov/pubmed/32164783
http://dx.doi.org/10.1186/s13047-020-0381-7
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