Abstract:
Using mouse which is unsuitable for hand, can cause Carpal Tunnel Syndrome. General mouse was not designed for hand and wrist when using mouse for a long time. Ergonomics mouse is not used widely because it might slow down using speed. Moreover, Most people do not know about the disadvantages of unsuitable mouse. Factors of Ergonomics mouse performance are hand size and using angle. We compared mouse and hand size, and using angle. We utilized six 3D printers to make a prototypical Ergonomics mouse with a big and small size, using angles of 0, 15, 25 degree. Our tests were based on ISO 9241-9 with 10 users. Users hand-size are around 13.5-19.2 cm. Test result are as followed; mouse size of 7.9-10.9 cm, and using angle of 0, 15, 25 degree do not affect performance of the mouse at 0.05 level. However, Ratio of mouse and hand are parabolically related. Moreover, Ratio 0.57-0.60 yielded the best performance. So we concluded that a mouse that is suitable for hand size should be used.