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Electromyographic assessment of agonist and antagonist muscles related to the anterior cruciate ligament following surgical reconstruction: A cross-sectional study

2025-10Journal article Embargoed access
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dc.contributor.authorParedes, Ricardo
dc.contributor.authorPereira, Soraia
dc.contributor.authorCrasto, Carlos
dc.contributor.authorGuedes, Diana
dc.contributor.authorMontes, António Mesquita
dc.contributor.authorAlves, Leonel
dc.contributor.authorArias-Buría, José L.
dc.contributor.authorC. Guedes, Diana
dc.contributor.authorMesquita Montes, António
dc.date.accessioned2025-12-16T10:31:19Z
dc.date.available2025-12-16T10:31:19Z
dc.date.issued2025-10
dc.description.abstractFollowing anterior cruciate ligament reconstruction (ACLR), neuromuscular control alterations may persist, increasing the risk of reinjury. This study aimed to investigate electromyographic (EMG) muscle activation and the co-contraction index (CCI) of ACL-related agonist and antagonist muscles during side- hop tasks in ACLR individuals, offering novel insights into neuromuscular strategies during dynamic tasks. A cross-sectional study was conducted with 15 ACLR individuals and 15 participants without ACL injury (N-ACLR). Participants performed side-hop tasks while kinematic, kinetic, and EMG data were recorded during the preparatory and loading phases. Statistical analyses were performed at a 95 % confidence level. During ipsilateral side hops, ACLR individuals exhibited higher semitendinosus (ST) activity in the initial contact (IC) and risk phases and increased quadriceps:hamstrings (Q:H) CCI in the risk phase compared to N-ACLR (p < 0.05). In contralateral side hops, ACLR individuals demonstrated higher Q:H CCI in the preparatory phase and higher vastus lateralis:biceps femoris (VL:BF) CCI in the IC and risk phases (p < 0.05). ACLR individuals display altered neuromuscular strategies during side-hop tasks compared to N-ACLR, highlighting adaptations in muscle activation and co-contraction patterns.por
dc.identifier.citationParedes, R., Crasto, C., Montes, A. M., André, A., Pereira, S., Guedes, D., Alves, L., & Arias-Buría, J. L. (2025). Electromyographic assessment of agonist and antagonist muscles related to the anterior cruciate ligament following surgical Reconstruction: A Cross-Sectional study. Journal of Electromyography and Kinesiology, 84, 103044. https://doi.org/10.1016/j.jelekin.2025.103044
dc.identifier.doi10.1016/j.jelekin.2025.103044
dc.identifier.eissn1873-5711
dc.identifier.issn1050-6411
dc.identifier.urihttp://hdl.handle.net/10400.22/31211
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S1050641125000707
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectKnee
dc.subjectAnterior cruciate ligament
dc.subjectMotor control
dc.subjectMuscle activity
dc.subjectElectromyography
dc.titleElectromyographic assessment of agonist and antagonist muscles related to the anterior cruciate ligament following surgical reconstruction: A cross-sectional studyeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of Electromyography and Kinesiology
oaire.citation.volume84
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameC. Guedes
person.familyNameMesquita Montes
person.givenNameDiana
person.givenNameAntónio
person.identifier.ciencia-id9D19-1431-DA3E
person.identifier.orcid0009-0007-4157-1386
person.identifier.orcid0000-0003-2777-8050
person.identifier.scopus-author-id57190182435
relation.isAuthorOfPublication1840fc6e-4f0d-40c5-9b2c-4b6b8e9d7eb7
relation.isAuthorOfPublicationbdb9ef9c-0b90-4b92-bc1a-f00ff9f14f8f
relation.isAuthorOfPublication.latestForDiscovery1840fc6e-4f0d-40c5-9b2c-4b6b8e9d7eb7

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