The effect of six keyboard designs on wrist and forearm postures

Alan Barr, David Rempel, Ed Young, David Brafman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There is increasing evidence that alternative geometry keyboards may prevent or reduce arm pain or disorders and presumably the mechanism is by reducing awkward arm postures. However, the effects of alternative keyboards, especially the new designs, on wrist and arm postures are not well known. In this laboratory study, the wrist and forearm postures of 100 subjects were measured with a motion analysis system while they typed on 6 different keyboard configurations. There were significant differences in wrist extension, ulnar deviation, and forearm pronation between keyboards. When considering all 6 wrist and forearm postures together, the keyboard with an opening angle of 12°, a gable angle of 14°, and a slope of 0° appears to provide the most neutral posture among the keyboards tested in the configuration tested. This study identifies significant wrist and forearm posture differences between 6 keyboard configurations. These findings may assist in ergonomie recommendations regarding computer usage.

Original languageEnglish (US)
Title of host publicationProceedings of the Human Factors and Ergonomics Society 50th Annual Meeting, HFES 2006
Pages1366-1369
Number of pages4
StatePublished - Dec 1 2006
Externally publishedYes
Event50th Annual Meeting of the Human Factors and Ergonomics Society, HFES 2006 - San Francisco, CA, United States
Duration: Oct 16 2006Oct 20 2006

Publication series

NameProceedings of the Human Factors and Ergonomics Society
ISSN (Print)1071-1813

Other

Other50th Annual Meeting of the Human Factors and Ergonomics Society, HFES 2006
CountryUnited States
CitySan Francisco, CA
Period10/16/0610/20/06

ASJC Scopus subject areas

  • Human Factors and Ergonomics

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  • Cite this

    Barr, A., Rempel, D., Young, E., & Brafman, D. (2006). The effect of six keyboard designs on wrist and forearm postures. In Proceedings of the Human Factors and Ergonomics Society 50th Annual Meeting, HFES 2006 (pp. 1366-1369). (Proceedings of the Human Factors and Ergonomics Society).