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dc.contributor.authorPedão, Sabrina Tiago
dc.contributor.authorBarela, José Angelo [UNESP]
dc.contributor.authorDe Almeida Lima, Kauê Carvalho
dc.contributor.authorDe Freitas, Paulo Barbosa
dc.date.accessioned2014-05-27T11:28:54Z
dc.date.available2014-05-27T11:28:54Z
dc.date.issued2013-04-08
dc.identifierhttp://dx.doi.org/10.1186/1743-0003-10-34
dc.identifier.citationJournal of NeuroEngineering and Rehabilitation, v. 10, n. 1, 2013.
dc.identifier.issn1743-0003
dc.identifier.urihttp://hdl.handle.net/11449/75086
dc.description.abstractBackground: The relationship between normal and tangential force components (grip force - GF and load force - LF, respectively) acting on the digits-object interface during object manipulation reveals neural mechanisms involved in movement control. Here, we examined whether the feedback type provided to the participants during exertion of LF would influence GF-LF coordination and task performance. Methods. Sixteen young (24.7 ±3.8 years-old) volunteers isometrically exerted continuously sinusoidal FZ (vertical component of LF) by pulling a fixed instrumented handle up and relaxing under two feedback conditions: targeting and tracking. In targeting condition, FZ exertion range was determined by horizontal lines representing the upper (10 N) and lower (1 N) targets, with frequency (0.77 or 1.53 Hz) dictated by a metronome. In tracking condition, a sinusoidal template set at similar frequencies and range was presented and should be superposed by the participants' exerted FZ. Task performance was assessed by absolute errors at peaks (AEPeak) and valleys (AEValley) and GF-LF coordination by GF-LF ratios, maximum cross-correlation coefficients (r max), and time lags. Results: The results revealed no effect of feedback and no feedback by frequency interaction on any variable. AE Peak and GF-LF ratio were higher and rmax lower at 1.53 Hz than at 0.77 Hz. Conclusion: These findings indicate that the type of feedback does not influence task performance and GF-LF coordination. Therefore, we recommend the use of tracking tasks when assessing GF-LF coordination during isometric LF exertion in externally fixed instrumented handles because they are easier to understand and provide additional indices (e.g., RMSE) of voluntary force control. © 2013 Pedão et al.; licensee BioMed Central Ltd.en
dc.language.isoeng
dc.relation.ispartofJournal of NeuroEngineering and Rehabilitation
dc.sourceScopus
dc.subjectAuditory
dc.subjectHand function
dc.subjectMotor control
dc.subjectVisual
dc.subjectadult
dc.subjectanalysis of variance
dc.subjectbiomechanics
dc.subjectfeedback system
dc.subjectfemale
dc.subjecthand strength
dc.subjecthuman
dc.subjectmale
dc.subjectmuscle isometric contraction
dc.subjectphysiology
dc.subjectpressure transducer
dc.subjectpsychomotor performance
dc.subjectstatistical analysis
dc.subjectweight bearing
dc.subjectAdult
dc.subjectAnalysis of Variance
dc.subjectBiomechanics
dc.subjectData Interpretation, Statistical
dc.subjectFeedback, Physiological
dc.subjectFemale
dc.subjectHand Strength
dc.subjectHumans
dc.subjectIsometric Contraction
dc.subjectMale
dc.subjectPsychomotor Performance
dc.subjectTransducers, Pressure
dc.subjectWeight-Bearing
dc.subjectYoung Adult
dc.titleGrip and load force coordination in cyclical isometric manipulation task is not affected by the feedback typeen
dc.typeArtigo
dcterms.licensehttp://www.biomedcentral.com/about/license
dc.contributor.institutionCruzeiro Do sul University
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationInstitute of Physical Activity and Sport Sciences and Graduate Program in Human Movement Sciences Cruzeiro Do sul University, Rua Galvão Bueno 868, 13 andar, São Paulo 01506-000, SP
dc.description.affiliationDepartament of Physical Education Bioscience Institute São Paulo State University at Rio Claro, Av. 24-A, 1515, Bela Vista, Rio Claro, São Paulo, SP 13506-900
dc.description.affiliationUnespDepartament of Physical Education Bioscience Institute São Paulo State University at Rio Claro, Av. 24-A, 1515, Bela Vista, Rio Claro, São Paulo, SP 13506-900
dc.identifier.doi10.1186/1743-0003-10-34
dc.identifier.wosWOS:000318066500001
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-84875689527
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Rio Claropt
dc.identifier.file2-s2.0-84875689527.pdf
dc.identifier.lattes1652339643129712
unesp.author.lattes1652339643129712
unesp.author.orcid0000-0002-0406-041X[4]
dc.relation.ispartofjcr3.865
dc.relation.ispartofsjr1,515
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