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Differences in Trapezius Muscle H-Reflex between Asymptomatic Subjects and Symptomatic Shoulder Pain Subjects

2023-05Artigo científico Acesso aberto
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dc.contributor.authorMelo, Ana S.C.
dc.contributor.authorTaylor, Janet L.
dc.contributor.authorFerreira, Ricardo
dc.contributor.authorCunha, Bruno
dc.contributor.authorAscenção, Manuel
dc.contributor.authorFernandes, Mathieu
dc.contributor.authorSousa, Vítor
dc.contributor.authorCruz, Eduardo B.
dc.contributor.authorVilas-Boas, J. Paulo
dc.contributor.authorSousa, Andreia S.P.
dc.contributor.institutionNOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM)
dc.contributor.institutionComprehensive Health Research Centre (CHRC) - pólo NMS
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2023-09-25T22:19:24Z
dc.date.available2023-09-25T22:19:24Z
dc.date.issued2023-05
dc.descriptionFunding Information: This work was supported by the Grant SFRH/BD/140874/2018 and through R&D Unit funding (UIDB/05210/2020), Fundação para a Ciência e Tecnologia (FCT), Portugal. Publisher Copyright: © 2023 by the authors.
dc.description.abstractIn chronic shoulder pain, adaptations in the nervous system such as in motoneuron excitability, could contribute to impairments in scapular muscles, perpetuation and recurrence of pain and reduced improvements during rehabilitation. The present cross-sectional study aims to compare trapezius neural excitability between symptomatic and asymptomatic subjects. In 12 participants with chronic shoulder pain (symptomatic group) and 12 without shoulder pain (asymptomatic group), the H reflex was evoked in all trapezius muscle parts, through C3/4 nerve stimulation, and the M-wave through accessory nerve stimulation. The current intensity to evoke the maximum H reflex, the latency and the maximum peak-to-peak amplitude of both the H reflex and M-wave, as well as the ratio between these two variables, were calculated. The percentage of responses was considered. Overall, M-waves were elicited in most participants, while the H reflex was elicited only in 58–75% or in 42–58% of the asymptomatic and symptomatic participants, respectively. A comparison between groups revealed that the symptomatic group presented a smaller maximum H reflex as a percentage of M-wave from upper trapezius and longer maximal H reflex latency from the lower trapezius (p < 0.05). Subjects with chronic shoulder pain present changes in trapezius H reflex parameters, highlighting the need to consider trapezius neuromuscular control in these individuals’ rehabilitation.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent6199367
dc.identifier.doi10.3390/s23094217
dc.identifier.issn1424-8220
dc.identifier.otherPURE: 72016428
dc.identifier.otherPURE UUID: fc47f73b-eb5a-4637-a501-9d3d47c606c8
dc.identifier.otherScopus: 85159377859
dc.identifier.otherPubMed: 37177422
dc.identifier.urihttp://hdl.handle.net/10362/158262
dc.identifier.urlhttps://www.scopus.com/pages/publications/85159377859
dc.language.isoeng
dc.peerreviewedyes
dc.subjectfeedback mechanisms
dc.subjectHoffmann reflex
dc.subjectmotoneuron recruitment
dc.subjectscapular stability
dc.subjectshoulder pain
dc.subjecttrapezius muscle
dc.subjectAnalytical Chemistry
dc.subjectInformation Systems
dc.subjectAtomic and Molecular Physics, and Optics
dc.subjectBiochemistry
dc.subjectInstrumentation
dc.subjectElectrical and Electronic Engineering
dc.titleDifferences in Trapezius Muscle H-Reflex between Asymptomatic Subjects and Symptomatic Shoulder Pain Subjectsen
dc.typejournal article
degois.publication.issue9
degois.publication.titleSensors
degois.publication.volume23
dspace.entity.typePublication
rcaap.rightsopenAccess

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