Effect of age and gender in the control of elbow flexion movements

dc.creatorBuchman, AS
dc.creatorGottlieb, GL
dc.creatorAlmeida, GL
dc.creatorLeurgans, S
dc.creatorChen, CH
dc.creatorCorcos, DM
dc.date2000
dc.dateDEC
dc.date2014-12-02T16:29:19Z
dc.date2015-11-26T16:50:52Z
dc.date2014-12-02T16:29:19Z
dc.date2015-11-26T16:50:52Z
dc.date.accessioned2018-03-28T23:37:39Z
dc.date.available2018-03-28T23:37:39Z
dc.identifierJournal Of Motor Behavior. Heldref Publications, v. 32, n. 4, n. 391, n. 399, 2000.
dc.identifier0022-2895
dc.identifierWOS:000165340900006
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/63734
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/63734
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/63734
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1275839
dc.descriptionIn previous studies of rapid elbow movements in young healthy men, characteristic task-dependent changes in the patterns of muscle activation when movement speed or distance was varied have been reported. In the present study, the authors investigated whether age or gender is associated with changes in the patterns of muscle activity previously reported in young men. Arm movements of 10 healthy older and 10 healthy younger participants (5 men and 5 women in each group) were studied. Surface electromyograms (EMGs) from agonist (biceps) and antagonist (triceps) muscles, kinematic and kinetic parameters, as well as anthropometric and strength measures were recorded. All 4 groups of participants showed similar task- (distance or speed) dependent changes in biphasic EMG activity. Similar modulation of the initial rate of rise of the EMG, integrated agonist and antagonist EMG activity, as well as their relative timing were observed in all 4 groups. Those results suggest that older individuals of both genders retain the control strategies for elbow movements used by young individuals. Despite the qualitative similarities in the patterns of muscle activation, the men moved more quickly than the women, and younger participants moved more quickly than older participants. Those performance differences could not be explained in terms of differences in body size and strength alone.
dc.description32
dc.description4
dc.description391
dc.description399
dc.languageen
dc.publisherHeldref Publications
dc.publisherWashington
dc.publisherEUA
dc.relationJournal Of Motor Behavior
dc.relationJ. Mot. Behav.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectaging
dc.subjectarm movements
dc.subjectEMG
dc.subjectgender
dc.subjectmotor control
dc.subjectSingle-joint Movements
dc.subjectSpeed-insensitive Strategy
dc.subjectOrganizing Principles
dc.subjectLimb Movements
dc.subjectMuscle
dc.subjectForce
dc.subjectVelocity
dc.subjectFemales
dc.subjectMales
dc.subjectContractions
dc.titleEffect of age and gender in the control of elbow flexion movements
dc.typeArtículos de revistas


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