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Determination of generic body-seat interface shapes by cluster analysis

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4 Author(s)
Yue Li ; Dept. of Mech. Eng., Ecole Polytech., Montreal, Que., Canada ; Aissaoui, R. ; Brienza, D.M. ; Dansereau, J.

The purpose of this study was to determine typical or generic shape patterns of the buttock-seat interface for elderly wheelchair users. The group of subjects was composed of 30 elderly people (aged 65 or older) and the shapes of the body-seat interface were measured by the electronic shape sensor (ESS). By analyzing the dissimilarity in geometrical shape descriptors or parameters, four distinct generic shapes were identified by means of the cluster analysis method. The results suggest that the generic shapes were mainly characterized by the lateral symmetry of the shapes. The determination of elderly people's seat interface shapes into distinct clusters may lead to a more comprehensive understanding of the seat support interface and more effective seat cushion designs

Published in:

Rehabilitation Engineering, IEEE Transactions on  (Volume:8 ,  Issue: 4 )

Date of Publication:

Dec 2000

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