| Project/Area Number |
11670354
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hygiene
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| Research Institution | Aichi Mizuho College |
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Principal Investigator |
SAITO Shin Aichi Mizuho College, Dept. of Human Sciences, Associate professor, 人間科学部・人間環境学科, 助教授 (70178482)
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| Co-Investigator(Kenkyū-buntansha) |
KATOH Zojiro Aichi Mizuho College, Dept. of Human Sciences, Professor, 人間科学部・人間科学科, 教授 (00257734)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | VDT (Visual Display Terminals) / Computer operation / Workload / Work posture / FPD (Flat Panel Display) / VDT(Visual Display Terminals) / FPD(Flat Pnael Display) |
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| Research Abstract |
The aim of this study was to evaluate working conditions using notebook personal computers, in order to prevent visual and musculoskeletal disorders. Four kinds of experiments of VDT (Visual Display Terminals) operations were carried out.
The first experiment was to evaluate viewing conditions using with a notebook personal computer and a desktop personal computer. The display of the notebook personal computers would allow a comfortable downward gaze than the desktop personal computers from the vertical eye position viewpoint.
The second experiment was to evaluate the work posture while using the notebook personal computers and desktop personal computers. Significant differences in both experimental conditions were seen with viewing distance, viewing angle and head angle. The characteristic features of the work posture using the notebook personal computers were a remarkably short viewing distance and a forward inclination of the head. The value of integrated electromyogram of the neck muscle was greater while using the notebook personal computers than when using the desktop personal computers.
The third experiment was to evaluate the addition of a mechanism for adjustment of the height of the notebook personal computer. The height of the display, 90-100cm, would allow a comfortable downward gaze and correct posture. The work posture became a more upright head and neck position using this adjustable display.
The final experiment was to consider how to use the flat panel display for various types VDT operations. The recommendation for comfortable VDT operation using the flat panel display, to adjust the display height for the each operator's height sitting down.
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