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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Evaluation of two wheelchair hand rim models: contact pressure distribution in straight line and curve trajectories

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Author(s):
Silva, Danilo Correa [1, 2] ; Paschoarelli, Luis Carlos [1] ; Medola, Fausto Orsi [1]
Total Authors: 3
Affiliation:
[1] Sao Paulo State Univ Unesp, Sch Architecture Arts & Commun, Bauru - Brazil
[2] Univ Regiao Joinville, Postgrad Programme Design, Univille, Joinville - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ERGONOMICS; v. 62, n. 12, p. 1563-1571, DEC 2 2019.
Web of Science Citations: 0
Abstract

Manual wheelchairs are essential for people with disabilities or limited mobility. However, manual propulsion causes biomechanical loads, including contact pressures on the palms of the hands. The hand rim design has received little attention over time, remaining almost unchanged since its creation. This study investigated how two different designs of such devices - one standard and another with a contoured design - influence the contact pressure on the surface of the hands. The procedures included a figure-of-eight shape propulsion task on a regular floor, using both models on a wheelchair. A pressure-mapping system coupled with a pair of fabric gloves recorded the data. The results show that the contoured hand rim provides lower pressure in most of the analysed regions. Considering that manual propulsion is performed during a considerable part of the day as a routine activity, improving the hand rim interface may benefit the user's comfort and safety during wheelchair use. Practitioner summary: The design of the hand rim used in wheelchair propulsion influences the contact pressure on the hands. Conventional round tube rims tend to concentrate high levels of pressure on the distal phalanges and metacarpal regions. A contoured design generally provides better stability and promotes the distribution of pressure. (AU)

FAPESP's process: 13/24629-5 - Manual interface and the distribution of pressure on palm human hand: a contribution to the ergonomic design of products
Grantee:Luis Carlos Pasquarella
Support Opportunities: Regular Research Grants