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Journal Article

Citation

Bao S, Silverstein B. Ergonomics 2005; 48(3): 288-301.

Affiliation

SHARP Program, Department of Labor and Industries, P.O. Box 44330, Olympia, WA 98504, USA. baos235@LNI.WA.GOV

Copyright

(Copyright © 2005, Informa - Taylor and Francis Group)

DOI

10.1080/0014013042000327724

PMID

15764327

Abstract

The aims of the present study were: (1) to collect normative data of pinch and power grip strength with a newer digital dynamometer; (2) to study the ability of hand grip force matching using a hand dynamometer where the validity and reliability issues were studied; and (3) to study the relationship between hand grip force matching and muscle activities of three forearm and hand muscles. This study consisted of two experiments. One hundred and twenty subjects volunteered in the first experiment, where hand grip strength and hand force estimation data were collected. The second experiment had 14 volunteers, where muscle activities of the hand and forearm were collected during the tests of hand grip strength and hand force matching estimations. Results showed that the power grip and pinch grip strengths collected with a newer digital dynamometer were comparable to similar studies using older equipment. At the group level, the force matching method was largely accurate and consistent. Instructions to the subjects about force matching estimation were important to the accuracy and consistency of the estimated forces. Estimation in force matching might depend on perceptions of several major muscle activities.


Language: en

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