| Can a plantar pressure-based tongue-placed electrotactile biofeedback improve postural control under altered vestibular and neck proprioceptive conditions? | |
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MedLine Citation:
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PMID: 18597943 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We investigated the effects of a plantar pressure-based tongue-placed electrotactile biofeedback on postural control during quiet standing under normal and altered vestibular and neck proprioceptive conditions. To achieve this goal, 14 young healthy adults were asked to stand upright as immobile as possible with their eyes closed in two Neutral and Extended head postures and two conditions of No-biofeedback and Biofeedback. The underlying principle of the biofeedback consisted of providing supplementary information related to foot sole pressure distribution through a wireless embedded tongue-placed tactile output device. Center of foot pressure (CoP) displacements were recorded using a plantar pressure data acquisition system. Results showed that (1) the Extended head posture yielded increased CoP displacements relative to the Neutral head posture in the No-biofeedback condition, with a greater effect along the anteroposterior than mediolateral axis, whereas (2) no significant difference between the two Neutral and Extended head postures was observed in the Biofeedback condition. The present findings suggested that the availability of the plantar pressure-based tongue-placed electrotactile biofeedback allowed the subjects to suppress the destabilizing effect induced by the disruption of vestibular and neck proprioceptive inputs associated with the head extended posture. These results are discussed according to the sensory re-weighting hypothesis, whereby the CNS would dynamically and selectively adjust the relative contributions of sensory inputs (i.e. the sensory weights) to maintain upright stance depending on the sensory contexts and the neuromuscular constraints acting on the subject. |
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Authors:
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N Vuillerme; O Chenu; N Pinsault; A Fleury; J Demongeot; Y Payan |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-07-01 |
Journal Detail:
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Title: Neuroscience Volume: 155 ISSN: 0306-4522 ISO Abbreviation: Neuroscience Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-07-23 Completed Date: 2008-11-05 Revised Date: 2009-11-19 |
Medline Journal Info:
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Nlm Unique ID: 7605074 Medline TA: Neuroscience Country: United States |
Other Details:
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Languages: eng Pagination: 291-6 Citation Subset: IM |
Affiliation:
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TIMC-IMAG Laboratory, University of Grenoble, Faculty of Medicine, La Tronche Cédex, France. nicolas.vuillerme@imag.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Biofeedback, Psychology* Female Humans Male Neck / innervation* Postural Balance* Posture* Proprioception / physiology* Task Performance and Analysis Tongue / physiology* Touch Vestibule, Labyrinth / immunology* |
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