Movement times of different arm components

Ergonomics
Errol R Hoffmann, Michael C Hui

Abstract

Data for ballistic and visually controlled movement times of different arm components are presented. Ballistic movement times gave strong support to the theoretical model that movement time is linearly related to the square-root of movement amplitude, for all arm components. It was found that there was a significant effect on movement time of the arm component being used. A scaling analysis showed that this time was linearly related to the product of the square-root of amplitude and the one-tenth power of limb mass moment of inertia. This relationship was found to be approximately true in the experiment. For visually controlled movements, movement time showed a significant interaction between Fitts' Index of Difficulty and arm component. The effect of arm component on movement time was stronger in visually controlled movements than in ballistic movements and did not allow the simple modelling in terms of limb mass moment of inertia as was possible with ballistic moves. STATEMENT OF RELEVANCE: Different arm components take different times to move the same distance, dependent on their mass moments of inertia and muscle strength. The work investigated times for finger, wrist, forearm, and full-arm movements that are relevant to ta...Continue Reading

References

May 1, 1988·Ergonomics·E R Hoffmann, K C Gan
Dec 1, 1970·Acta Physiologica Scandinavica·P O Astrand, S Englesson
May 1, 1968·Journal of Experimental Psychology·S W Keele, M I Posner
Jun 1, 1996·Journal of Motor Behavior·E. R. Hoffmann
Mar 1, 1984·Journal of Motor Behavior·C C GielenJ J Denier van der Gon
Jun 1, 1976·Journal of Motor Behavior·G D LangolfJ A Foulke

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Citations

Mar 9, 2012·Ergonomics·Namal ThibbotuwawaRavindra S Goonetilleke
Sep 26, 2012·Ergonomics·Errol R Hoffmann, Alan H S Chan
Mar 22, 2013·Ergonomics·Ray F Lin, Colin G Drury
Apr 8, 2014·Human Movement Science·Chiuhsiang Joe Lin, Hung-Jen Chen
May 26, 2012·Acta Psychologica·Jason BoyleCharles H Shea
Oct 16, 2015·Journal of Motor Behavior·Errol R Hoffmann
Feb 26, 2015·Ergonomics·Errol R Hoffmann, Alan H S Chan
Dec 6, 2012·Neuroscience·M BertuccoM L Latash
May 26, 2012·Neuroscience Letters·Mathieu Germain-RobitailleNormand Teasdale
Mar 14, 2012·Human Factors·Namal ThibbotuwawaErrol R Hoffmann
Dec 26, 2019·Scientific Reports·Misaki TakedaYasuhiro Wada

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