Linked Life Data

20705351

Source:http://linkedlifedata.com/resource/pubmed/id/20705351

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SubjectPredicateObjectContext
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pubmed-article:20705351pubmed:abstractTextInternal models are constantly updated based on the actions and experiences of a person in the world. In the present study, we proposed to assess the updating process of internal models of action by providing new environmental constraints for motor planning, postural control, and execution processes in daily tasks such as STS and BTS. STS and BTS tasks were performed with different inclinations of the support surface on which the participant and the chair were positioned: horizontal support, support tilted 10° to the right, or forward. Twelve healthy adults participated in this experiment. Kinematic characteristics were recorded using an optoelectronic motion analysis system. Movement duration and trunk inclination amplitudes were analyzed for STS and BTS as well as trunk orientation and strategies of head stabilization. Concerning the movement analysis our results showed (1) temporal asymmetry between STS and BTS, attributed mainly to the integration of the mechanical effects of gravity, and (2) a decrease of trunk movements when the support was tilted forward, attesting to an immediate adaptation process. Concerning the postural analysis our study revealed that adults adopted selective head stabilization on space strategy with respect to balance constraints. To conclude, young adults were able to immediately update their internal model of action in order to optimize motor control and vertical body orientation.lld:pubmed
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pubmed-article:20705351pubmed:authorpubmed-author:AssaianteChri...lld:pubmed
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pubmed-article:20705351pubmed:authorpubmed-author:ChabeautiPier...lld:pubmed
pubmed-article:20705351pubmed:copyrightInfoCopyright © 2010 Elsevier B.V. All rights reserved.lld:pubmed
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pubmed-article:20705351pubmed:year2011lld:pubmed
pubmed-article:20705351pubmed:articleTitleUpdating process of internal model of action as assessed from motor and postural strategies in young adults.lld:pubmed
pubmed-article:20705351pubmed:affiliationDPA Group, UMR 6149, CNRS-Université de Provence, Equipe Développement et Pathologie de l’Action, Pôle 3C–Laboratoire Neurosciences Intégratives & Adaptatives, Marseille, France. christine.assaiante@univ-provence.frlld:pubmed
pubmed-article:20705351pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:20705351pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed