A new approach for quantitative analysis of inter-joint coordination during gait

Détails

ID Serval
serval:BIB_B39E66EB12F4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
A new approach for quantitative analysis of inter-joint coordination during gait
Périodique
IEEE Trans Biomed Eng
Auteur(s)
Dejnabadi  H., Jolles  B. M., Aminian  K.
ISSN
0018-9294 (Print)
Statut éditorial
Publié
Date de publication
2008
Volume
55
Numéro
2
Pages
755-764
Notes
Research Support, Non-U.S. Gov't
DA - 20080213
LA - eng
SB - IM
Résumé
A new method for quantitative analysis of interjoint coordination at various walking speeds is presented. The model imposed a parametric relationship among lower limb joint motions (hips and knees) using the least number of parameters. An integration of different analysis tools such as harmonic analysis, principal component analysis, and artificial neural networks helped overcome high-dimensionality, temporal dependence, and nonlinear relationships of the gait patterns. The trained model was fed only two control parameters (cadence and stride length) for each gait cycle and predicted the corresponding gait waveforms. Based on the differences between predicted and actual gait waveforms, a coordination score, which ranged from 0 to 10, was defined at various walking speeds. The model was applied to eight patients with knee arthroplasty at different follow-ups as well as to eight healthy subjects, walking at three different speeds. The results showed that knee replacement and rehabilitation programs improved the coordination score. The technique provides an analytical tool that can be used as a routine test in the clinical evaluation of human gait abnormalities
Mots-clé
Aged , Algorithms , Arthroplasty , Computer Simulation , diagnosis , Diagnosis,Computer-Assisted , Female , Gait , Gait Disorders,Neurologic , Humans , Joints , Male , methods , Models,Biological , physiopathology , rehabilitation , Reproducibility of Results , Sensitivity and Specificity
Pubmed
Web of science
Création de la notice
15/12/2008 20:01
Dernière modification de la notice
03/03/2018 20:40
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