International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Cheng-Lung Lee1

Department of Industrial Engineering and Management, Chaoyang University of Technology, No. 168, Jifong E. Rd., Wufong, Taichung, 41349, Taiwan, R.O.C.


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This study presents a three-dimensional computer-modelling system based on Transom JACK software, with 3D objects/equipment and human subjects with specific anthropometric measurements to visualize and evaluate human-machine interaction. A computer simulation method is then adopted to evaluate some VDT (Visual Display Terminal) workstations to determine whether they are appropriate for use by wheelchair users. The study indicates that currently available commercial computer desks present difficulties, in terms of both spatial design and reachability of peripheral devices, to wheelchair users. Some VDT tasks result in awkward body postures in virtual subjects. New VDT workstations are designed and recommended to solve the shortcomings found.

Keywords: VDT; wheelchair users; computer simulation; JACK; postural analysis.

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  1. [1] Jarosz, E. 1996. Determination of the workspace of wheelchair users. International Journal of Industrial Ergonomics, 17: 123-133.

  2. [2] Kozey, J. W., and Das, B. 2004. Determination of the normal and maximum reach measures of adult wheelchair users. International Journal of Industrial Ergonomics, 33: 205-213.

  3. [3] Ashworth, J. B., Reuben, D. B., and Benton, L. A. 1994. Functional profile of healthy older persons. Age and Aging, 23: 34-39.

  4. [4] Babski-Reeves, K., Stanfield, J., and Hughes, L. 2005. Assessment of video display workstation set up on risk factors associated with the development of low back and neck discomfort. International Journal of Industrial Ergonomics, 35: 593-604.

  5. [5] Fogleman, M., and Lewis, R. J. 2002. Factors associated with self-reported musculoskeletal discomfort in video display terminal (VDT) users. International Journal of Industrial Ergonomics, 29: 311-318.

  6. [6] Gerr, F., Marcus, M., and Monteilh, C. 2004. Epidemiology of musculoskeletal disorders among computer users: lesson learned from the role of posture and keyboard use. Journal of Electromyography and Kinesiology, 14: 25-31.

  7. [7] Leung, A. W. S., Chan, C. C. H., and He, J. 2004. Structural stability and reliability of the Swedish occupational fatigue inventory among Chinese VDT workers. Applied Ergonomics, 35: 233-241.

  8. [8] Murata, A., Uetake, A., and Takasawa, Y. 2005. Evaluation of mental fatigue using feature parameter extracted from event-related potential. International Journal of Industrial Ergonomics, 35: 761-770.

  9. [9] Park, M. Y., Kim, J. Y., and Shin, J. H. 2000. Ergonomic design and evaluation of a new VDT workstation chair with keyboard-mouse support. International Journal of Industrial Ergonomics, 26: 537-548.

  10. [10] Psihogios, J. P., Sommerich, C. M., Mirka, G. A., and Moon, S. D. 2001. A field evaluation of monitor placement effects in VDT users. Applied Ergonomics, 32: 313-325.

  11. [11] Das, B., and Kozey, J. W. 1999. Structural anthropometric measurements for wheelchair mobile adults. Applied Ergonomics, 30: 385-390.

  12. [12] Gyi, D. E., Sims, R. E., Porter, J. M., Marshall, R., and Case, K. 2004, Representing older and disabled people in virtual user trials: data collection methods. Applied Ergonomics, 35: 443-451.

  13. [13] Paquet, V., and Feathers, D. 2004. An anthropometric study of manual and powered wheelchair users. International Journal of Industrial Ergonomics, 33: 191-204.

  14. [14] Reed, M. P., Van Roosmalen, L. 2005. A pilot study of a method for assessing the reach capability of wheelchair users for safety belt design. Applied Ergonomics, 36: 523-528.

  15. [15] Feeney, R. 2000. Approach with special reference to the needs of the disabled person. Proceedings of the IEA 2000/HFES 2000 Congress.

  16. [16] Tilley, A. R. 2002. “The measure of man and woman: human factors in design”. John Wiley & Sons, New York, 36-37.

  17. [17] Chi, C. F. 1998. The Task Redesign Manual for Handicapped People, Bureau of Employment and Vocational Training, Council of Labor Affairs, Executive Yuan. (In Chinese)

  18. [18] Feyen, R., Liu, Y., Chaffin, D., Jimmerson, G., and Joseph, B. 2000. Computer-aided ergonomics: a case study of incorporating ergonomics analysis into workplace design. Applied Ergonomics, 31:291-300.

  19. [19] Sengupta, A. K., and Das, B. 1997. Human: An autocad based three dimensional anthropometric human model for workstation design. International Journal of Industrial Ergonomics, 19: 345-352.

  20. [20] Mattila, M. 1996. Computer-aided ergonomics and safety - A challenge for integrated ergonomics. International Journal of Industrial Ergonomics,17: 309-314.

  21. [21] Porter, J. M., Case, K., Marshall, R., Gyi, D., and Oliver, R. 2004. ‘Beyond Jack and Jill’: designing for individuals using HADRIAN. International Journal of Industrial Ergonomics, 33: 249-264.

  22. [22] Univ. of Pennsylvania. 1997. JACK. Center for Human Modeling and Simulation, Department of Computer and Information Science, Univ. of Pennsylvania, U.S.A.

  23. [23] Sundin, A., Ortengren, R., Sjoberg, H. 2000. Proactive human factors engineering analysis in space station design using the computer manikin Jack. Proceedings of SAE Conference on Digital Human Modelling DHMC 2000, Dearborn, Michigan.

  24. [24] Sundin, A., Christmanson, M., and Ortengren, R. 2000. Use of a computer manikin in participatory design of assembly workstations. In K. Landau (ed.) “Ergonomic Software Tools in Product and Workplace design”, Stuttgart: Ergon Verlag, 204-213.

  25. [25] Leskinen, T., and Haijanen, J. 1996. Torque on the low back and the weight limits recommended by NIOSH in simulated lifts. Proceedings of the Fourth International Symposium on 3-D Analysis of Human Movement, France.

  26. [26] Haijanen, J., Leskinen, T., Kuusisto, A., and Laitinen, H. 1996. Redesign of lifting work using a 3-D human modelling software and the revised NIOSH lifting equation. Advances in Occupational Ergonomics and Safety, Finland, 339-344.

  27. [27] 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. International Journal of Industrial Ergonomics, 23: 3-8.

  28. [28] McAtamney, L., and Corlett, E. N. 1993. RULA: a survey method for the investigation of work-related upper limb disorders. Applied Ergonomics, 24: 91-99.

  29. [29] AT&T Bell Laboratories. 1983. Video display terminals. Short Hills, N. J.

  30. [30] Institute of Occupational Safety and Health (IOSH), 1999. “Occupational safety and health Guide for VDT workstations”, Publication No. IOSH88 -T- 027. (in Chinese)

  31. [31] Woodson, W. E., Tillman, B., and Tillman, P. 1992. “Human Factors Design Handbook”, McGraw-Hill, London.

  32. [32] Guan, S. S., Lin, Y. C., and Ke, L. T. 2001. A study of computer workstation of ergonomics. Proceedings of 8th Annual Meeting & Conference of Ergonomics Society of Taiwan, 229-234. (In Chinese)


Accepted: 2007-10-08
Available Online: 2007-12-01

Cite this article:

Lee, C.-L. 2007. Ergonomic study of VDT workstations for wheelchair users. International Journal of Applied Science and Engineering, 5, 97–113.

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