| Contribution of muscle strength and integration of afferent input to postural instability in persons with stroke. | |
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MedLine Citation:
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PMID: 15537993 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To determine the relationship of muscle strength to postural sway in persons with stroke under standing conditions in which vision and ankle proprioception were manipulated. METHODS: Forty persons with stroke and 40 healthy older adult controls were recruited from the community and underwent balance testing consisting of 6 conditions that manipulate vision and somatosensory information while standing. Postural sway was measured during each condition. In addition, lower extremity joint torques and cutaneous sensation from the plantar surface of the foot were assessed. RESULTS: Postural sway was increased with more challenging standing conditions (i.e., when multiple sensory systems were manipulated) to a greater extent with the group with stroke compared to controls. Muscle strength was only correlated to sway during the most challenging conditions. Furthermore, a greater number of persons with stroke fell during the balance testing compared to controls. CONCLUSIONS: Impairments in re-weighting/integrating afferent information, in addition to muscle weakness, appear to contribute to postural instability and falls in persons with stroke. These findings can be used by clinicians to design effective interventions for improving postural control following stroke. |
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Authors:
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Daniel S Marigold; Janice J Eng; Craig D Tokuno; Catherine A Donnelly |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neurorehabilitation and neural repair Volume: 18 ISSN: 1545-9683 ISO Abbreviation: Neurorehabil Neural Repair Publication Date: 2004 Dec |
Date Detail:
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Created Date: 2004-11-11 Completed Date: 2005-02-25 Revised Date: 2011-12-21 |
Medline Journal Info:
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Nlm Unique ID: 100892086 Medline TA: Neurorehabil Neural Repair Country: United States |
Other Details:
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Languages: eng Pagination: 222-9 Citation Subset: IM |
Affiliation:
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Graduate Program in Neuroscience, University of British Columbia, and Rehab Research Lab, G.F. Strong Rehab Centre, Vancouver, BC, Canada. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Female Humans Male Middle Aged Motor Neurons / physiology Muscle Contraction / physiology* Muscle, Skeletal / innervation*, physiology Neurons, Afferent / physiology* Paresis / physiopathology Postural Balance / physiology Posture / physiology* Proprioception / physiology Stroke / physiopathology* |
| Grant Support | |
ID/Acronym/Agency:
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63617//Canadian Institutes of Health Research |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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