VDT 사용자의 Pelvic Tilt와 Lumbar Lordosis의 간접 측정 방법론 = A methodology for indirect measurement Pelvic Tilt and Lumbar Lordosis of VDT users

다국어 초록 (Multilingual Abstract)

Objective: The aim of this study is to develop and verify an indirect method for estimating sitting posture by observing pelvic tilt and lumbar lordosis of visual display terminal (VDT) users. Background: Depending on the wrong sitting posture, musculosketal disorders (MSDs) such as low back pain may occur. In the case of the general public, it is impossible to observe the sitting posture quantitatively. Therefore, we developed a system that can estimate the user’s sitting posture through two IMUs. Method: Five participants were conducted test. Participants conducted paperwork for each one hour through a computer. When participants are working, we took video (Kinect V2, USA), measuring body pressure distribution by pressure mat (X3 LX100, Canada) and lumbar angle by two IMUs every fifteen minutes. Results: Results showed that lumbar lordosis and pelvic tilt of the subject could be indirectly estimated with only two IMUs. We could identify posterior pelvic tilt in user’s sitting posture as time goes on. Conclusion: This result can be alternative method of observing and evaluating the sitting posture of a person using VDT for a long time. Application: The results can evaluate the sitting posture of the VDT users, and can lead to sitting in a good posture.

목차 (Table of Contents)

• ABSTRACT
• 1. Introduction
• 2. Method
• 3. Results
• 4. Discussion
• 5. Conclusion
• References