Document Detail

Patient-driven control of FES-supported standing up and sitting down: experimental results.
MedLine Citation:
PMID:  11204044     Owner:  NLM     Status:  MEDLINE    
A patient-driven control strategy for standing-up and sitting-down was experimentally tested on two paraplegic patients by applying functional electrical stimulation (FES) to the quadriceps muscle. The strategy--also known as "patient-driven motion reinforcement" (PDMR)--was developed by computer simulations reported in a former study. It is based on an inverse dynamic model (IDM) that predicts the stimulation pattern required to maintain the movement as it is initiated by the patient's voluntary effort. For reasons of safety and weight relief, the movement was supported by a seesaw construction. After some practice the patients were able to influence the stimulator output and to control the movement by their voluntary effort. Consequently, no pre-programmed reference trajectory was required. As a positive side effect, upper body effort could be minimized compared to trials without FES. To achieve a satisfactory performance of the PDMR controller a careful parameter identification of the inverse dynamic model was fundamental.
R Riener; M Ferrarin; E E Pavan; C A Frigo
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society     Volume:  8     ISSN:  1063-6528     ISO Abbreviation:  IEEE Trans Rehabil Eng     Publication Date:  2000 Dec 
Date Detail:
Created Date:  2001-01-31     Completed Date:  2001-04-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9413994     Medline TA:  IEEE Trans Rehabil Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  523-9     Citation Subset:  IM    
Centro di Bioingegneria, Fondazione Don Gnocchi, IRCCS, Politecnico di Milano, Milan, Italy.
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MeSH Terms
Disabled Persons / rehabilitation*
Electric Stimulation
Leg / physiology
Muscle, Skeletal / physiology*
Paraplegia / rehabilitation*
Posture / physiology*
Spinal Cord Injuries / physiopathology*

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

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