사무직 근로자들의 VDT 증후군 예방을 위한 자동 관찰 및 진동 피드백 시스템의 효과성 검증

• Published in: 한국안전학회지 Vol. 34; no. 3; pp. 75 - 82
• Main Authors: 안지연, Ji Yeon Ahn, 오세진, Shezeen Oah
• Format: Journal Article
• Language: Korean
• Published: 한국안전학회 30.06.2019
• Subjects: immediate feedback; negative procedure; positive procedure; technology-based intervention; VDT syndrome; vibration feedback; 안전공학; immediate feedback; VDT syndrome; positive procedure; technology-based intervention; vibration feedback; negative procedure
• ISSN: 1738-3803; 2383-9953
• DOI: 10.14346/JKOSOS.2019.34.3.75

The purpose of this study was to evaluate the effectiveness of a vibration feedback system in improving two safe seating postures of office workers. In addition, the relative effectiveness of positive and negative feedback procedures was examined. Participants were four office workers. The dependent variables were the percentages of time participants spent in the safe sitting postures including shoulder, back, and overall body positions during the experimental sessions. A multiple-baseline design counterbalanced across participants was adopted. For two participants, the negative procedure was introduced first after baseline and positive procedure was introduced in the next phase. For the other two participants, the sequence of introducing the positive and negative feedback procedures was reversed. The result showed that the vibration feedback system, regardless of the type of the procedure, was effective in improving the safe sitting postures for all participants. However, the difference between the two procedures was not clearly shown. The benefits of the automated observation and vibration feedback system in workers' safety were discussed.