𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Measuring the conspicuity of routeing signs in public environments : Boersema, T., and Zwaga, H.J.G. In: Proceedings of the Human Factors Society 28th Annual Meeting ‘New Frontiers for Science and Technology’, San Antonio, Texas, 22–26 October 1984, Edited by M.J. Alluisi, S. De Groot and E.A. Alluisi. The Human Factors Society, Santa Monica, California, 1984, Vol 2, pp 822–823


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
147 KB
Volume
17
Category
Article
ISSN
0003-6870

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✦ Synopsis


This study investigated the influence of handle characteristics on fatigue of the gripping muscles while doing a slicing task as in using a knife in cutting meat. Subjects actually cut cylinders of modelling clay as a simulated meat-cutting task. Immediately after completing the cutting task the time to fatigue for the grasp muscles was estimated using the electromyographical technique developed by Petrofsky and Lind (1980). The handles evaluated were all rectangular with cross-sectional height to width ratios from 1:1"25 to 1:2. Each ratio was tested in four sizes. No significant differences in time to fatigue were found for the different handles. Time to fatigue was, however, significantly correlated with six anthropometric measures.


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