title: Effects of body height, notebook computer size, and workstation height on recommended adjustments for proper work posture when operating a notebook computer.
abstract: Factors which are likely to affect recommended workstation and notebook computer (NBC) adjustments to obtain ergonomic work posture during NBC operation are investigated. They are: (1) body height, (2) NBC size, and (3) workstation height (i.e., seat and work surface heights). Six recommended adjustments which are evaluated include: (1) footrest height, (2) seat support height, (3) NBC base support height, (4) distance between the user's body and NBC (or user-NBC distance), (5) tilt angle of NBC base, and (6) screen angle. It is found that body height has a significant effect on footrest height and user-NBC distance while NBC size has a significant effect on user-NBC distance, tilt angle of NBC base, and screen angle. Workstation height, on the other hand, does not show any effect on the six recommended adjustments. However, the results suggest that there are interactions between body height and NBC size, and between body height and workstation height when evaluating their effects on footrest height, tilt angle of NBC base, and screen angle.
authors.affiliation: Engineering Management Program, Sirindhorn International Institute of Technology, Thammasat University, Pathumthani 12121, Thailand suebsak@est.or.th
authors.forename: Suebsak
authors.initials: S
authors.lastname: Nanthavanij
authors.forename: Sakib
authors.initials: S
authors.lastname: Jalil
authors.forename: Veeris
authors.initials: V
authors.lastname: Ammarapala
mesh_terms: D000465:Algorithms; D000704:Analysis of Variance; D000886:Anthropometry; D001827:Body Height; D004867:Equipment Design; D006804:Ergonomics; D005260:Female; D006801:Humans; D008297:Male; D008838:Microcomputers; D011187:Posture