| Neuroprosthesis for footdrop compared with an ankle-foot orthosis: effects on postural control during walking. | |
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MedLine Citation:
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PMID: 19110144 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: We sought to compare the effects of a radio frequency-controlled neuroprosthesis on gait stability and symmetry to the effects obtained with a standard ankle-foot orthosis (AFO). METHODS: A total of 15 patients (mean age: 52.2 +/- 3.6 years) with prior chronic hemiparesis resulting from stroke or traumatic brain injury (5.9 +/- 1.5 year) whose walking was impaired by footdrop and regularly used an AFO participated in the study. There was a 4-week adaptation period during which participants increased their daily use of the neuroprosthesis, while using the AFO for the rest of the day. Gait was then assessed in a 6-minute walk while wearing force-sensitive insoles, by using the neuroprosthesis and the AFO in a randomized order. An additional gait assessment was conducted after using the neuroprosthesis for a further 4 weeks. Gait speed and stride time (inverse of cadence) were determined, as were gait asymmetry index and swing time variability. RESULTS: After the 4-week adaptation period, there were no differences between walking with the neuroprosthesis and walking with the AFO (P > .05). After 8 weeks, there was no significant difference in gait speed, whereas stride time improved from 1.48 +/- 0.21 seconds with the AFO to 1.41 +/- 0.16 seconds with the neuroprosthesis (P < .02). Swing time variability decreased from 5.3 +/- 1.6% with the AFO to 4.3 +/- 1.4% with the neuroprosthesis (P = .01). A gait asymmetry index improved by 15%, from 0.20 +/- 0.09 with the AFO to 0.17 +/- 0.08 with the neuroprosthesis (P < .05). CONCLUSIONS: Compared with AFO, the studied neuroprosthesis appears to enhance balance control during walking and, thus, more effectively manage footdrop. |
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Authors:
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Haim Ring; Iuly Treger; Leor Gruendlinger; Jeffrey M Hausdorff |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association Volume: 18 ISSN: 1532-8511 ISO Abbreviation: J Stroke Cerebrovasc Dis Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2008-12-26 Completed Date: 2009-02-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9111633 Medline TA: J Stroke Cerebrovasc Dis Country: United States |
Other Details:
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Languages: eng Pagination: 41-7 Citation Subset: IM |
Affiliation:
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Neurological Rehabilitation Department, Loewenstein Rehabilitation Center, Ranana, Israel. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological Artificial Limbs* Biomechanics Boston Brain Injuries / complications*, physiopathology, rehabilitation Electric Stimulation Therapy* Equipment Design Female Gait Disorders, Neurologic / etiology, physiopathology, rehabilitation* Humans Israel Male Middle Aged Orthotic Devices* Patient Satisfaction Perception Peroneal Nerve / physiopathology Postural Balance* Prosthesis Design Recovery of Function Stroke / complications*, physiopathology, rehabilitation Treatment Outcome Walking* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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