Yoo Won-gyu, Yi Chung-hwi, Kim Min-hee
Department of Rehabilitation Therapy, The Graduate School, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-752 Republic of Korea.
J Occup Rehabil. 2006 Dec;16(4):631-7. doi: 10.1007/s10926-006-9059-7.
This study was designed to identify the effects of feedback from a proximity-sensing chair on head, shoulder, and trunk postures when working at a visual display terminal (VDT).
Twenty healthy adults were asked to perform VDT work, and their forward head, forward shoulder, and trunk flexion angles were analyzed using a 3-D motion analysis system. The statistical significance of differences between without and with an auditory feedback device was tested by paired t-tests, with the significance cutoff set at alpha=0.05.
The forward head, forward shoulder, and trunk flexion angles significantly decreased during VDT work when using the proximity sensor with auditory feedback.
We suggest that a feedback device promotes the adoption of beneficial postures, which may be effective in preventing VDT-work-related neck and upper-limb disorders.
本研究旨在确定接近感应椅的反馈对在视觉显示终端（VDT）工作时头部、肩部和躯干姿势的影响。
20名健康成年人被要求进行VDT工作，并使用三维运动分析系统分析他们的头部前伸、肩部前伸和躯干屈曲角度。通过配对t检验测试有无听觉反馈装置之间差异的统计学显著性，显著性临界值设定为α=0.05。
在使用带有听觉反馈的接近传感器进行VDT工作期间，头部前伸、肩部前伸和躯干屈曲角度显著减小。
我们认为反馈装置有助于采用有益姿势，这可能对预防与VDT工作相关的颈部和上肢疾病有效。
