| Effect of AFO design on walking after stroke: impact of ankle plantar flexion contracture. | |
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MedLine Citation:
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PMID: 20738232 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study was conducted to compare the effects of three ankle-foot orthosis (AFO) designs on walking after stroke and determine whether an ankle plantar flexion contracture impacts response to the AFOs. A total of 30 individuals, ranging from 6-215 months post-stroke, were tested in four conditions: shoes only (SH), dorsi-assist/dorsi-stop AFO (DA-DS), plantar stop/free dorsiflexion AFO (PS), and rigid AFO (Rigid). Kinematics, kinetics, and electromyographic (EMG) activity were recorded from the hemiparetic lower extremity while participants walked at a self-selected pace. Gait parameters were compared between conditions and between participants with and without a moderate ankle plantar flexion contracture. All AFOs increased ankle dorsiflexion in swing and early stance. Anterior tibialis EMG was reduced only in the PS AFO. Both PS and Rigid AFOs restricted ankle plantar flexion and increased knee flexion in loading. Peak ankle dorsiflexion in stance and soleus EMG intensity were greatest in the PS AFO. The Rigid AFO tended to restrict dorsiflexion in stance and knee flexion in swing only in participants without a plantar flexion contracture. Individuals without a contracture benefit from an AFO that permits dorsiflexion mobility in stance and those with quadriceps weakness may more easily tolerate an AFO with plantar flexion mobility in loading. |
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Authors:
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Sara J Mulroy; Valerie J Eberly; Joanne K Gronely; Walter Weiss; Craig J Newsam |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Prosthetics and orthotics international Volume: 34 ISSN: 1746-1553 ISO Abbreviation: Prosthet Orthot Int Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-08-26 Completed Date: 2010-12-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7707720 Medline TA: Prosthet Orthot Int Country: England |
Other Details:
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Languages: eng Pagination: 277-92 Citation Subset: IM |
Affiliation:
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Pathokinesiology Laboratory, Rancho Los Amigos National Rehabilitation Center, Downey, California 90242, USA. smulroy@dhs.lacounty.gov |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Ankle Joint / physiology* Biomechanics Contracture / etiology, rehabilitation* Electromyography Equipment Design Female Foot Joints / physiology* Gait / physiology Humans Male Middle Aged Orthotic Devices* Range of Motion, Articular / physiology* Shoes Stroke / complications, rehabilitation* Treatment Outcome Video Recording |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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