Document Detail


Verification of accuracy and validity of gait phase detection system using motion sensors for applying walking assistive FES.
MedLine Citation:
PMID:  21607889     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In this study, we have analysed heel strike (HS) and toe off (TO) of normal individuals and hemiplegic patients, taking advantage of output curves acquired from various sensors, and verified the validity of sensor detection methods and their effectiveness when they were used for hemiplegic gaits. Gait phase detections using three different motion sensors were valid, since they all had reliabilities more than 95%, when compared with foot velocity algorithm. Results showed that the tilt sensor and the gyrosensor could detect gait phase more accurately in normal individuals. Vertical acceleration could detect HS most accurately in hemiplegic patient group A. The gyrosensor could detect HS and TO most accurately in hemiplegic patient groups A and B. The detection of TO from all sensor signals was valid in both the patient groups A and B. However, the vertical acceleration detected HS validly in patient group A and the gyrosensor detected HS validly in patient group B.
Authors:
Sunwoo Park; Kihong Ryu; Jungyoon Kim; Jongsang Son; Youngho Kim
Related Documents :
426399 - Whole body hyperthermia: a phase-i trial of a potential adjuvant to chemotherapy.
7182949 - Time-domain remarks on the cycle-to-cycle variability in some quantities measured on th...
368669 - Treatment of patients with neurological deficits associated with cerebral vasospasm by ...
8756809 - Cycle length of periodic breathing in patients with and without heart failure.
11373489 - Successful extracorporeal life support in a case of severe flecainide intoxication.
2225419 - Late complications in pediatric cardiac transplant recipients.
7428379 - Effect of right ventricular pacing on t and st changes of the electrocardiogram in endo...
1565179 - Beta-2-microglobulin-derived amyloidosis: onset, distribution and clinical features in ...
15681999 - Metabolite profile of cerebrospinal fluid in patients with spina bifida: a proton magne...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-01
Journal Detail:
Title:  Computer methods in biomechanics and biomedical engineering     Volume:  -     ISSN:  1476-8259     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9802899     Medline TA:  Comput Methods Biomech Biomed Engin     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-7     Citation Subset:  -    
Affiliation:
Department of Biomedical Engineering, Institute of Medical Engineering, Yonsei University, Wonju, Gangwon, South Korea.
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:  Numerical simulation of cross-country skiing.
Next Document:  The non-linear response of a muscle in transverse compression: assessment of geometry influence usin...