站坐躺通用型電腦工作站的使用性評估

Usability Evaluation of the Universal Computer Workstation under Supine, Sitting and Standing Postures

白名堯(Ming-Yao Bai)

指導教授 ： 吳欣潔

朝陽科技大學/理工學院/工業工程與管理系/碩士(2012年)

摘要

本研究目的在於針對通用型電腦工作站進行使用性的評估。9位肢體障礙者與10位健康年輕人參與測試評估，以瞭解他們操作電腦的績效、各部位的舒適程度和滿意度，並記錄在三種姿勢下(站、坐、躺)，使用者調整後的各個偏好參數值。
　　結果顯示，躺姿與坐姿在操作電腦的績效上並沒有顯著性的差異。健康年輕人在躺姿使用此工作站的平均舒適度為4.2分(SD=1.3)，肢體障礙者的平均舒適度為4.4分(SD=1.3)，表示受測者認為使用此工作站感到舒適。健康年輕人在坐姿使用此工作站時的平均滿意度為3.7分(SD=1.1)，肢體障礙者的平均滿意度為3.7分(SD=1.0)，表示受測者對於此工作站的滿意度有不錯的評價。
　　使用自製的通用型電腦工作站，能夠調整成站、坐、躺著的姿勢，其設計也能夠讓輪椅輕易的進出。如果能以平躺的姿勢來代替坐姿使用電腦，確實能減少腰椎所承受的壓力值。本研究也收集了使用者的建議，可以提供未來改善通用型電腦工作站的參考。

關鍵字

躺姿工作站設計 ； 人因評估 ； 通用設計 ； 電腦工作站

並列摘要

The purpose of this study was to evaluate the usabiblity of an universal computer workstation. The 9 handicaped and 10 healthy people participated the test and evaluation, in order to understand the performance of computer operation, the comfort for body parts and satisfaction. Further, the preferred setting parameters for the three postures (standing, sitting, and supine) were collected.
　　The results showed that there were no significant differences in computer performance between the supine and sitting postures. In supine postures, the healthy people had the mean rating in comfort of 4.2 (SD=1.3). The handicapped had the mean rating in comfort of 4.4 (SD=1.3). It means the subjects considered this workstation as comfortable. In sitting postures, the healthy people had the mean rating in satisfaction of 3.7 (SD=1.1). The handicapped had the mean rating in satisfaction of 3.7 (SD=1.0). It indicates this workstation satisfied the subjects.
　　 Using the self-made universal computer workstation can successfully adopt standing, sitting, and supine postures. This design also allows easy access of wheelchair. If you can adopt supine posture to use the computer instead of sitting, the lumbar pressure can be reduced. The users’ recommendations were also collected in this study that can provide helpful references for further improvement of an universal computer workstation.

並列關鍵字

Supine workstation design ； Universal design ； Computer workstation ； Ergonomics assessed

參考文獻

1. Alan H., Jason J., Anshu A., Kate R.H., “Sitting or Standing for Computer Work — Does a Negative-Tilt Keyboard Tray Make a Difference?” Proceedings of the Human Factors and Ergonomics Society Annual Meeting, Vol. 49, No. 8, pp.808-811 (2005).

2. Ankrum, D. R., Nemeth, K. J., “Posture, comfort, and monitor placement.” Ergonomics in Design, Vol. 3, No. 2, pp.7-9 (1995).

3. Bergqvist, U. O., Knave, B., Voss, M. and Wibom, R., “A longitudinal study of VDT work and health.” International Journal of Human-Computer Interaction, Vol. 4, pp.197-219 (1992).

4. Bergqvist, U., Wolgast, E., Nilsson, B., Voss, M., “Musculoskeletal disorders among visual display terminal workers-individual, ergonomic and work organizational factors.” Ergonomics, Vol. 38, pp.763-776 (1995).

5. Carcone, S.M., Keir, P.J., “Effects of backrest design on biomechanics and comfort during seated work,” Applied Ergonomics, Vol. 38, No. 6, pp.755–764 (2007).