Document Detail


Design and analysis of a new medial reciprocal linkage using a lower limb paralysis simulator.
MedLine Citation:
PMID:  25384401     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Study design:A feasibility study on the effect of a new reciprocating orthosis on specific gait parameters for use by people with spinal cord injury.Objectives:The aim of this study was to design and develop a new medial linkage orthosis (MLO) mechanism incorporating a reciprocating motion and to determine its efficacy in improving specific spatiotemporal, kinematic and kinetic parameters while ambulating when worn by healthy subjects. This was achieved via the use of a lower limb paralysis simulator (LLPS).Methods:A reciprocating joint with a remote center of motion was designed for use as an MLO. A prototype was fabricated and incorporated into an orthosis and equipped with a saddle to make the reciprocating motion possible. The efficacy of the orthosis was evaluated on four able-bodied healthy subjects who were trained to walk with the MLO attached to the LLPS.Results:Mean walking speed, stride length, stride time and cadence was 0.09±0.007 m s(-1), 0.42±0.01 m, 4.89±0.45 s and 29.54±4.32 steps min(-1), respectively, when healthy subjects walked with the new orthosis. The mean hip joint torque produced was 0.36±0.13 Nm.Conclusion:In this study a new MLO was designed and fabricated that provided a reciprocating mechanism using a four-bar mechanism to set the virtual axis of the mechanism in a more proximal position than hinge-type joints. Further investigation is currently underway to assess its effect on gait parameters and energy expenditure in paraplegic patients.Spinal Cord advance online publication, 11 November 2014; doi:10.1038/sc.2014.193.
Authors:
M Ahmadi Bani; M Arazpour; F Farahmand; S Sefati; M Baniasad; S W Hutchins; R Vahab Kashani; M E Mousavi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-11
Journal Detail:
Title:  Spinal cord     Volume:  -     ISSN:  1476-5624     ISO Abbreviation:  Spinal Cord     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-11-11     Completed Date:  -     Revised Date:  2014-11-12    
Medline Journal Info:
Nlm Unique ID:  9609749     Medline TA:  Spinal Cord     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  A retrospective review of the ambulatory blood pressure patterns and diurnal urine production in sub...
Next Document:  Spinal sample showing p-JNK and P38 associated with the pain signaling transduction of glial cell in...