Ergonomic Study of VDT Workstations for Wheelchair Users

Abstract: This study presents a three-dimensional computer-modelling system based on Tran-som JACK software, with 3D objects/equipment and human subjects with specific anthropomet-ric measurements to visualize and evaluate human-machine interaction. A computer simulation method is then adopted to evaluate some VDT (Visual Display Terminal) workstations to deter-mine 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