An Observational Study of Office Workers' Postural Behaviors During Computer Work

사무직 근로자의 컴퓨터 작업 자세의 관찰 연구

  • Jun, Deok-Hoon (Department of Rehabilitaion and health promotion, Daegu University) ;
  • Goo, Mi-Ran (Industry-University Cooperation Foundation, Silla University)
  • 전덕훈 (대구대학교 재활건강증진학과) ;
  • 구미란 (신라대학교 산학협력단)
  • Received : 2021.07.25
  • Accepted : 2021.08.03
  • Published : 2021.08.31


Purpose: The purpose of this study was to observe office workers' postural behaviors during computer work to identify the risk factors for head and thorax postural behaviors. Methods: The participants included 57 office workers who worked longer than 20 hours on a computer. Postural behaviors during computer work were measured using 3-D wearable motion sensors on the forehead and sternum. A multivariate linear regression model evaluated the association between various risk factors (neck pain, demographics, and environmental factors) and non-head and thorax postural behaviors. Results: The participants maintained their head and thorax in neutral postures (defined as 10° extension~10° flexion and 5° extension~10° flexion, respectively) for 24.7% and 39.3% of the total recorded time. Those who reported neck pain at the measurement of postural behaviors showed less time spent in thorax postures. Current neck pain, high desk height, and the distance between the keyboard and the edge of the desk (cm) were found to be related to less time spent in a neutral thorax posture. Conclusion: Office environment factors and current neck pain might affect workers' thorax postures, which might also determine the orientation of head postures during computer work.



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