Jans Marielle P, Proper Karin I, Hildebrandt Vincent H
TNO Quality of Life, Leiden, The Netherlands.
Am J Prev Med. 2007 Dec;33(6):450-4. doi: 10.1016/j.amepre.2007.07.033.
Sedentary behavior is an independent risk factor for excess body weight and other health problems. There are no published data on sitting time at work, or how this is related to occupation and sector (branch of business). No published study has shown whether extended sitting at work is compensated for by sitting less during leisure time.
This study used data from a continuous cross-sectional survey, from 2000 to 2005 (N=7720). Workers were asked how many minutes they spent sitting during the preceding day, both at work and in their leisure time. To test differences in sitting times among occupational groups and sectors, descriptive analyses and analyses of variance were carried out in 2006.
On average, the Dutch working population reported sitting for 7 hours each day, one third of which was at work. Occupational groups and sectors differed significantly in sedentary behavior, mainly involving sitting periods at work. Workers spending long periods sitting at work did not compensate by sitting less during their leisure time.
Workers spend a substantial part of their waking and working time seated. Those who sat for long periods at work did not compensate for this lack of activity by adopting less-sedentary behaviors during leisure time. To prevent health problems, the best approach may be to reduce sedentary behavior at work, when traveling to and from work, and during leisure time.
久坐行为是超重及其他健康问题的独立风险因素。目前尚无关于工作时坐姿时长的数据，也不清楚其与职业及行业（业务分支）之间的关系。尚无已发表的研究表明工作时的长时间坐姿是否能通过休闲时间减少坐姿来得到补偿。
本研究使用了2000年至2005年连续横断面调查的数据（N = 7720）。研究人员询问了工作人员前一天在工作和休闲时间坐着的时长。为检验职业群体和行业之间坐姿时长的差异，2006年进行了描述性分析和方差分析。
荷兰工作人群平均每天坐着的时长为7小时，其中三分之一是在工作时。职业群体和行业在久坐行为方面存在显著差异，主要体现在工作时的坐姿时长上。工作时长时间坐着的工作人员在休闲时间并没有通过减少坐姿来进行补偿。
工作人员在清醒和工作时间的很大一部分是坐着度过的。那些在工作时长时间坐着的人并没有通过在休闲时间采取较少久坐行为来弥补这种活动不足。为预防健康问题，最佳方法可能是减少工作时、上下班途中以及休闲时间的久坐行为。
