The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation

Abstract Motor imagery (MI) is usually facilitated when performed in a congruent body position to the imagined movement, as well as after actual execution (AE). A lower-limb amputation (LLA) results in important structural and functional changes in the sensorimotor system, which can alter MI. In thi...

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Autores principales:	Arnaud Saimpont, Francine Malouin, Anne Durand, Catherine Mercier, Franck di Rienzo, Elodie Saruco, Christian Collet, Aymeric Guillot, Philip L. Jackson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2c0a968ab9164cdd8f6eb8f32425998b
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spelling	oai:doaj.org-article:2c0a968ab9164cdd8f6eb8f32425998b2021-12-02T14:34:02ZThe effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation10.1038/s41598-021-93240-62045-2322https://doaj.org/article/2c0a968ab9164cdd8f6eb8f32425998b2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93240-6https://doaj.org/toc/2045-2322Abstract Motor imagery (MI) is usually facilitated when performed in a congruent body position to the imagined movement, as well as after actual execution (AE). A lower-limb amputation (LLA) results in important structural and functional changes in the sensorimotor system, which can alter MI. In this study, we investigated the effects of body position and AE on the temporal characteristics of MI in people with LLA. Ten participants with LLA (mean age = 59.6 ± 13.9 years, four females) and ten gender- and age-matched healthy control participants (mean age = 60.1 ± 15.4 years, four females) were included. They performed two locomotor-related tasks (a walking task and the Timed Up and Go task) while MI times were measured in different conditions (in congruent/incongruent positions and before/after AE). We showed that MI times were significantly shorter when participants imagined walking in a congruent-standing position compared to an incongruent-sitting position, and when performing MI after actual walking compared to before, in both groups. Shorter MI times in the congruent position and after AE suggest an improvement of MI’s temporal accuracy (i.e. the ability to match AE time during MI) in healthy individuals but not in the LLA group.Arnaud SaimpontFrancine MalouinAnne DurandCatherine MercierFranck di RienzoElodie SarucoChristian ColletAymeric GuillotPhilip L. JacksonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Arnaud Saimpont Francine Malouin Anne Durand Catherine Mercier Franck di Rienzo Elodie Saruco Christian Collet Aymeric Guillot Philip L. Jackson The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
description	Abstract Motor imagery (MI) is usually facilitated when performed in a congruent body position to the imagined movement, as well as after actual execution (AE). A lower-limb amputation (LLA) results in important structural and functional changes in the sensorimotor system, which can alter MI. In this study, we investigated the effects of body position and AE on the temporal characteristics of MI in people with LLA. Ten participants with LLA (mean age = 59.6 ± 13.9 years, four females) and ten gender- and age-matched healthy control participants (mean age = 60.1 ± 15.4 years, four females) were included. They performed two locomotor-related tasks (a walking task and the Timed Up and Go task) while MI times were measured in different conditions (in congruent/incongruent positions and before/after AE). We showed that MI times were significantly shorter when participants imagined walking in a congruent-standing position compared to an incongruent-sitting position, and when performing MI after actual walking compared to before, in both groups. Shorter MI times in the congruent position and after AE suggest an improvement of MI’s temporal accuracy (i.e. the ability to match AE time during MI) in healthy individuals but not in the LLA group.
format	article
author	Arnaud Saimpont Francine Malouin Anne Durand Catherine Mercier Franck di Rienzo Elodie Saruco Christian Collet Aymeric Guillot Philip L. Jackson
author_facet	Arnaud Saimpont Francine Malouin Anne Durand Catherine Mercier Franck di Rienzo Elodie Saruco Christian Collet Aymeric Guillot Philip L. Jackson
author_sort	Arnaud Saimpont
title	The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
title_short	The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
title_full	The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
title_fullStr	The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
title_full_unstemmed	The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
title_sort	effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2c0a968ab9164cdd8f6eb8f32425998b
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The effects of body position and actual execution on motor imagery of locomotor tasks in people with a lower-limb amputation

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