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Displacement between the seating surface and hybrid test dummy during transitions with a variable configuration wheelchair: a technical note.

Cooper, Rory A and Dvorznak, MJ and Rentschler, AJ and Boninger, Michael L (2000) Displacement between the seating surface and hybrid test dummy during transitions with a variable configuration wheelchair: a technical note. Journal of rehabilitation research and development, 37 (3). 297 - 303. ISSN 0748-7711

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Abstract

Changing seating posture can extend the amount of time a person can safely remain seated without damaging tissue or becoming fatigued. The Excelsior is an electrically powered wheelchair that utilizes sit-to-stand (STS) and sit-to-recline (STR) motions to aid in pressure relief. The motion of the wheelchair seating system must closely follow anatomical paths or ulcers may develop from the resulting shear forces. Displacement between the person and the wheelchair seating surface is one measure of these shear forces. The displacement between a Hybrid II 50th percentile anthropometric test dummy (ATD) and the seating surface of the Excelsior wheelchair was examined during STS and STR with two cushions, a Jay Active and a low-profile Roho cushion. The difference between the backrest and ATD back angles were 4.29 degrees +/- 2.13 degrees and 1.78 degrees +/- 1.73 degrees for the Roho and Jay cushions respectively during STS and 3.32 degrees +/- 4.21 degrees and 10.71 degrees +/- 6.20 degrees during STR. These were statistically significant at p


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Cooper, Rory ARCOOPER@pitt.eduRCOOPER
Dvorznak, MJ
Rentschler, AJ
Boninger, Michael Lboninger@pitt.eduBONINGER
Centers: Other Centers, Institutes, Offices, or Units > Human Engineering Research Laboratories
Date: 2000
Date Type: Publication
Journal or Publication Title: Journal of rehabilitation research and development
Volume: 37
Number: 3
Page Range: 297 - 303
Schools and Programs: School of Health and Rehabilitation Sciences > Health and Rehabilitation Sciences
Refereed: Yes
ISSN: 0748-7711
Article Type: Research Article
MeSH Headings: Biomechanics; Biomedical Engineering--methods; Equipment Design--methods; Equipment Safety; Humans; Manikins; Posture; Sensitivity and Specificity; Surface Properties; Wheelchairs
PubMed ID: 10917261
Date Deposited: 05 Oct 2012 16:26
Last Modified: 30 Oct 2018 12:58
URI: http://d-scholarship.pitt.edu/id/eprint/15658

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