Gallagher Kaitlin M, Campbell Troy, Callaghan Jack P
a Department of Kinesiology , University of Waterloo , Waterloo , ON , Canada.
Ergonomics. 2014;57(4):555-62. doi: 10.1080/00140139.2014.893027. Epub 2014 Mar 19.
With the recent attention to 'sitting disease', health practitioners and scientists are promoting standing in the workplace to decrease sedentary time, despite a high prevalence of low back pain (LBP) development during prolonged standing. The purpose of this study was to assess how a seated break inserted between bouts of prolonged standing would influence LBP development, posture and movement. A total of 20 participants stood for 45 minutes, sat for 15 minutes and repeated this sequence while lumbar and thoracic angles were measured, and LBP visual analogue scale reports were taken. Of the sample, 55% participants reported LBP in standing. A stand to sit ratio of 3:1 did not provide lasting recovery of LBP from standing and pain developers utilised a limited range of their lumbar spine angle and increased thoracic extension, resulting in static postures that caused tissue aggravation that was not resolved after 15 minutes of sitting. Prolonged standing in the workplace has the potential to result in LBP for some workers and alternate ways to reduce sedentary time should be investigated.
随着近期对“久坐病”的关注，尽管长时间站立期间下背痛（LBP）的发生率很高，但健康从业者和科学家仍在提倡在工作场所站立以减少久坐时间。本研究的目的是评估在长时间站立的间隙插入一次坐姿休息会如何影响LBP的发生、姿势和运动。共有20名参与者站立45分钟，坐下15分钟，并重复此序列，同时测量腰椎和胸椎角度，并获取LBP视觉模拟量表报告。在样本中，55%的参与者报告在站立时有LBP。3:1的站立与坐姿比例并不能使LBP从站立状态中得到持久缓解，而且有疼痛的参与者腰椎脊柱角度的活动范围有限，胸椎后伸增加，导致静态姿势，引起组织加重，在坐下15分钟后仍未缓解。在工作场所长时间站立可能会导致一些工人出现LBP，应该研究减少久坐时间的其他方法。
