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dc.contributor.authorCastillo Escario, Yolanda
dc.contributor.authorRodriguez Cañón, Maria
dc.contributor.authorGarcía Alías, Guillermo
dc.contributor.authorJané Campos, Raimon
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Biomèdica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial
dc.date.accessioned2020-10-05T10:44:49Z
dc.date.available2020-10-05T10:44:49Z
dc.date.issued2020-01-01
dc.identifier.citationCastillo-Escario, Y. [et al.]. Identifying muscle synergies from reaching and grasping movements in rats. "IEEE access", 1 Gener 2020, vol. 8, p. 62517-62530.
dc.identifier.issn2169-3536
dc.identifier.urihttp://hdl.handle.net/2117/329787
dc.description.abstractReaching and grasping (R&G) is a skilled voluntary movement which is critical for animals. In this work, we aim to identify muscle synergy patterns from R&G movements in rats and show how these patterns can be used to characterize such movements and investigate their consistency and repeatability. For that purpose, we analyzed the electromyographic (EMG) activity of five forelimb muscles recorded while the animals were engaged in R&G tasks. Our dataset included 200 R&G attempts from three different rats. Non-negative matrix factorization was used to decompose EMG signals and extract muscle synergies. We compared all pairs of attempts and created cross-validated models to study intra- and inter-subject variability. We found that three synergies were enough to accurately reconstruct the EMG envelopes. These muscle synergies and their corresponding activation coefficients were very similar for all the attempts in the database, providing a general pattern to describe the movement. Results suggested that the movement strategy adopted by an individual in its different attempts was highly repetitive, but also resembled the strategies adopted by the other animals. Inter-subject variability was not much higher than intra-subject variability. This study is a proof-of-concept, but the proposed approaches can help to establish whether there is a stereotyped pattern of neuromuscular activity in R&G movement in healthy rats, and the changes that occur in animal models of acute neurological injuries. Research on muscle synergies could elucidate motor control mechanisms, and lead to quantitative tools for evaluating upper limb motor impairment after an injury
dc.format.extent14 p.
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
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::Informàtica::Automàtica i control
dc.subject.lcshElectromyography
dc.subject.lcshMuscles -- Motility
dc.subject.otherElectromyography
dc.subject.otherMotor control
dc.subject.otherMuscle synergies
dc.subject.otherReaching and grasping
dc.subject.otherUpper limb
dc.titleIdentifying muscle synergies from reaching and grasping movements in rats
dc.typeArticle
dc.subject.lemacElectromiografia
dc.subject.lemacMúsculs -- Mobilitat
dc.contributor.groupUniversitat Politècnica de Catalunya. BIOSPIN - Biomedical Signal Processing and Interpretation
dc.identifier.doi10.1109/ACCESS.2020.2984471
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://ieeexplore.ieee.org/document/9050772
dc.rights.accessOpen Access
local.identifier.drac28852512
dc.description.versionPostprint (published version)
local.citation.authorCastillo-Escario, Y.; Rodriguez-Cañón, M.; García-Alías, G.; Jane, R.
local.citation.publicationNameIEEE access
local.citation.volume8
local.citation.startingPage62517
local.citation.endingPage62530


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Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain