Abstract
The effect of using five different optical mice on cursor positioning task performance and on wrist posture was investigated. The 5 mouse designs included 1 conventional mouse, 2 angled mice and 2 vertical mice. Results showed that performance was significantly different for the 5 mice for the cursor point-and-click tasks and cursor dragging tasks. Task performance was slowest for the traditional mouse and fastest for the vertical mice. Wrist extension was lowest for the slanted mouse designs and highest for the vertical mice. The results show that performance and posture were affected in opposite ways by these different mouse designs, and that the design features that promote good performance may compromise good wrist posture and vice versa. Overall, an adjustable-size slanted mouse design may offer the best combination of neutral posture and performance.
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