The effect of hand strength on pointing performance of users for different input devices

Authors:
Pradipta Biswas;Pat Langdon
Affiliations:
Dept of Engineering, Cambridge, United Kingdom;University of Cambridge, CAMBRIDGE, United Kingdom
Venue:
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
Year:
2011

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Abstract

We have investigated how hand strength affects pointing performance of people with and without mobility impair-ment in graphical user interfaces for four different input modalities. We have found that grip strength and active range of motion of wrist are most indicative of the point-ing performance. We have used the study to develop a set of linear equations to predict pointing time for different devices.