Secondly, the preferred eye to monitor distance (about 58 cm) for PC
workstation was found to be similar to that of reported in reference (c). But the
distance is relatively shorter than those reported in references (a) and (b) for PC
and CAD workstations.
Conclusions and RecommendationdsThe findings of this study reveal that the Taiwanese VDT users preferred to sit
in a pronounced backward leaning posture with upper arm slightly elevated, and
elbow angle greater than 901 for both PC and CAD workstations. But there are
some differences between the posture recommended by general VDT
workstation design guideline and the actual preferred posture. As for the
comparison of preferred settings between PC and CAD workstation, the main
differences occurred at the head-neck posture and gaze angle which were mainly
caused by the difference in monitor size. A more erect but still backward
monitor tilt setting was preferred for CAD workstation. Since there is no
significant difference in the working height, seat height and monitor base stand
height between PC and CAD workstation, similar adjustable dimensions should
be specified for designing the two types of VDT workstations.The preferred posture angles of upper body showed some consistency with
previous studies based on western data. But the preferred monitor center height,
keyboard height and seat height were significantly lower than the previous
reports based on western data. It seems that there existed some additional factors
other than the anthropometric differences such as the influence of the subjects'
field VDT workstation settings which might attribute to the above phenomenon.
| Grandjean, E.,
Münting, W. and
Pidermann, M. ( 1983). VDT workstation
design: preferred settings and their effects, Human Factors, 25, 161-175.|
| Ong, C. N.,
Phoon, W. O. and
Low, A. ( 1988). Anthropometrics and
display station preferences of VDU operators, Ergonomics, 31, 337-347.|
| Van der G. Heiden and
Krueger, H. ( 1984). Evaluation of ergonomic features
of the computer vision instaview graphics terminal. In E. Grandjean and
, eds., Ergonomic Aspects of Visual Terminals. Taylor and Francis, London.|
| Wang, E. M. Y.,
Wang, M. J.,
Yeh, W. Y. Shih, Y. C. and
Lin, Y. C. ( 1999).
Development of anthropometric work environment for Taiwanese workers,
Intemational Journal of Industrial Ergonomics, 23, 3-8.|
Questia, a part of Gale, Cengage Learning. www.questia.com
Book title: Human-Computer Interaction:Ergonomics and User Interfaces.
Contributors: Hans-Jörg Bullinger - Editor, Jürgen Ziegler - Editor.
Publisher: Lawrence Erlbaum Associates.
Place of publication: Mahwah, NJ.
Publication year: 1999.
Page number: 40.
This material is protected by copyright and, with the exception of fair use, may
not be further copied, distributed or transmitted in any form or by any means.