Publication:
Anticipatory planning of functional reach-to-grasp: a pilot study

dc.contributor.authorTan, Carolineen_US
dc.contributor.authorJarugool Tretriluxanaen_US
dc.contributor.authorPitsch, Ericaen_US
dc.contributor.authorNuttakarn Runnarongen_US
dc.contributor.authorWinstein, Carolee J.en_US
dc.date.accessioned2014-03-03T04:33:38Z
dc.date.accessioned2018-03-26T02:25:44Z
dc.date.available2014-03-03T04:33:38Z
dc.date.available2018-03-26T02:25:44Z
dc.date.created2014-03-03
dc.date.issued2012-10
dc.description.abstractBackground. Intensive task-oriented training such as constraint-induced movement therapy (CIMT) is thought to engage motor learning and decision-making processes, including anticipatory action planning. Objective. To identify the effects of CIMT on anticipatory hand posture selection and movement time for task-specific reach-to-grasp performance. Methods. Subacute and chronic poststroke participants were recruited into CIMT (n = 10) or non-CIMT (n = 10) groups. Arm and hand functions were assessed before and after 2 weeks with the Wolf Motor Function Test (WMFT), Motor Activity Log (MAL), and a unique skilled reach-to-grasp task designed to test anticipatory hand posture selection. The reach-to-grasp tasks included power and precision grasping in 2 conditions achieved optimally with either a pronated (low difficulty) or supinated (high difficulty) hand posture. Outcome measures included success rate, frequency of optimal strategy selection, and movement time. Results. Between-group comparisons revealed a significant treatment effect for WMFT and MAL scores. The CIMT group showed larger gains in success rate, optimal posture selection (precision grasp only), and faster movement times for the supinated conditions. Conclusion. Together, a faster movement time and greater frequency of optimal hand posture selection in the more difficult task condition highlights a set of novel findings. These results provide evidence for training-induced improvements in upper-extremity function that support neurobehavioral recovery more than compensation. Although these findings are preliminary in view of the small sample size, the authors suggest that they may be useful to design and power larger-scale studies to further the understanding of the fundamental mechanisms induced by task-oriented training interventions in neurorehabilitation.en_US
dc.identifier.citationNeurorehabilitation and Neural Repair. Vol.26, No.8 (2012), 957-967en_US
dc.identifier.doi10.1177/1545968312437938
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/20.500.14594/10406
dc.language.isoengen_US
dc.rightsMahidol University
dc.rights.holderSageen_US
dc.subjectmotor learningen_US
dc.subjectmotor planningen_US
dc.subjectposture selectionen_US
dc.subjectmanual dexterityen_US
dc.titleAnticipatory planning of functional reach-to-grasp: a pilot studyen_US
dc.typeArticleen_US
dspace.entity.typePublication
mods.location.urlhttp://nnr.sagepub.com/content/26/8/957.full.pdf+html

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