Two pen mouse designs were compared with a conventional mouse design in a laboratory experiment. Sixteen Ss (8 men; 8 women) used each of the mice to perform a series of tasks. Wrist posture was measured while holding each mouse. Results show the pen mice decreased ulnar deviation and wrist pronation, the latter being more reduced for women. However, wrist extension was lowest for the conventional mouse. No significant differences in task performance were found between the 3 designs that were tested. Ss reported that the conventional mouse was easier to use than the pen mice and just over half of the Ss preferred this design. A longer-term study is warranted.
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