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dc.contributor.authorTassani, Simone
dc.contributor.authorFont Llagunes, Josep Maria
dc.contributor.authorGonzález Ballester, Miguel A.
dc.contributor.authorNoailly, Jérôme
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica
dc.date.accessioned2019-01-29T14:11:53Z
dc.date.available2020-01-29T01:26:12Z
dc.date.issued2019-02-01
dc.identifier.citationTassani, S. [et al.]. Muscular tension significantly affects stability in standing posture. "Gait and posture", 1 Febrer 2019, vol. 68, p. 220-226.
dc.identifier.issn0966-6362
dc.identifier.urihttp://hdl.handle.net/2117/127822
dc.description.abstractMuscular co-contraction is a strategy commonly used by elders with the aim to increase stability. However, co-contraction leads to stiffness which in turns reduces stability. Some literature seems to suggest an opposite approach and to point out relaxation as a way to improve stability. Teaching relaxation is therefore becoming the aim of many studies letting unclear whether tension or relaxation are the most effective muscular strategy to improve stability. Relaxation is a misleading concept in our society. It is often confused with rest, while it should be addressed during stressing tasks, where it should aim to reduce energetic costs and increase stability. The inability to relax can be related to sub-optimal neuro-motor control, which can lead to increased stresses. Research question The objective of the study is to investigate the effect of voluntary muscle contraction and relaxation over the stability of human standing posture, answering two specific research questions: (1) Does the muscular tension have an impact on stability of standing posture? (2) Could this impact be estimated by using a minimally invasive procedure? Methods By using a force plate, we analysed the displacement of the center of pressure of 30 volunteers during state of tension and relaxation in comparison with a control state, and with open and closed eyes. Results We found that tension significantly reduced the stability of subjects (15 out of 16 parameters, p¿<¿0.003). Significance Our results show that daily situations of stress can lead to decreased stability. Such a loss might actually increase the risk of chronic joint overload or fall. Finally, breathing has direct effect over the management of pain and stress, and the results reported here point out the need to explicitly explore the troubling fact that a large portion of population might not be able to properly breath.
dc.format.extent7 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
dc.subject.lcshBiomechanics
dc.subject.otherStability postural
dc.subject.otherAnalysis Muscular
dc.subject.otherTension muscular relaxation
dc.titleMuscular tension significantly affects stability in standing posture
dc.typeArticle
dc.subject.lemacBiomecànica
dc.contributor.groupUniversitat Politècnica de Catalunya. BIOMEC - Biomechanical Engineering Lab
dc.identifier.doi10.1016/j.gaitpost.2018.11.034
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://doi.org/10.1016/j.gaitpost.2018.11.034
dc.rights.accessOpen Access
local.identifier.drac23539614
dc.description.versionPostprint (published version)
local.citation.authorTassani, S.; Font-Llagunes, J.M.; González Ballester, Miguel A.; Noailly, J.
local.citation.publicationNameGait and posture
local.citation.volume68
local.citation.startingPage220
local.citation.endingPage226


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