Document Detail

Static ankle impedance in stroke and multiple sclerosis: a feasibility study.
MedLine Citation:
PMID:  22256327     Owner:  NLM     Status:  MEDLINE    
Quantitative characterization of ankle mechanical impedance is critical for understanding lower extremity function in persons with neurological disorders. In this paper, we examine the feasibility of employing an ankle robot and multivariable analysis to determine static ankle impedance in 4 patients: 1 with multiple sclerosis and 3 with stroke. We employed a scalar based vector field approximation method which was successful in identifying young healthy subjects' ankle impedance. It enabled clear interpretation of spatial ankle impedance structure and intermuscular feedback at the ankle for both affected and unaffected legs. Measured impedance of two patients was comparable to healthy young subjects, while the other two patients had significantly different static ankle impedance properties.
Hyunglae Lee; Tara Patterson; Jooeun Ahn; Daniel Klenk; Albert Lo; Hermano Igo Krebs; Neville Hogan
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference     Volume:  2011     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2011  
Date Detail:
Created Date:  2012-01-18     Completed Date:  2012-05-31     Revised Date:  2014-08-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8523-6     Citation Subset:  IM    
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MeSH Terms
Aged, 80 and over
Ankle / physiopathology*
Case-Control Studies
Electric Impedance
Feasibility Studies
Joint Prosthesis
Middle Aged
Multiple Sclerosis / physiopathology*,  rehabilitation
Robotics / instrumentation*
Stroke / physiopathology*,  rehabilitation
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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