Using Sit-to-Stand Workstations in Offices: Is There a Compensation Effect?
Using Sit-to-Stand Workstations in Offices: Is There a Compensation Effect?
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DOI：
10.1249/mss.0000000000000802
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发表时间：
2016-04-01
期刊：
影响因子：
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通讯作者：
Clemes, Stacy A.
中科院分区：
文献类型：
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作者：
Mansoubi, Maedeh;Pearson, Natalie;Clemes, Stacy A.
目的坐立式工作站在现代办公室中变得越来越普遍，并越来越多地应用于久坐行为干预。本研究的目的是检验在上班族中引入这样的工作站是否会导致工作时间中坐着的时间减少，以及上班族是否会通过增加坐着时间和减少工作外体力活动(PA)来弥补工作中坐着时间的减少。方法给40名上班族(n=40，55%女性)提供了一个为期3个月的WorkFit-S坐-立工作站。参与者在基线(安装工作站之前)、安装工作站后1wk和6wk以及在3个月(干预后)完成评估。结果与基线相比，患者坐着的时间比例显著减少(75%+/-13%比52%+/-16%比56%+/-13%)，站立和轻活动时间显著增加(站立：19%+/-12%比32%+/-12%比37%+/-15%，轻比：14%+/-4%比16%+/-5%)。然而，与基线相比，在所有后续测量中，在非工作时间坐着的时间比例显著增加(60%+/-11%比66%+/-12%至68%+/-12%)，光活动显著减少(21%+/-5%比19%+/-5%)。在整个研究过程中，在非工作时间中，中等到剧烈的活动没有差异。结论研究结果表明，引入坐-立工作台可以显著减少坐着的时间，增加工作时间中的轻度活动水平。然而，这些变化通过减少活动和增加工作时间外的坐着来弥补。坐立式工作台的干预应该伴随着工作时间以外的干预，以限制行为补偿。
PurposeSit-to-stand workstations are becoming common in modern offices and are increasingly being implemented in sedentary behavior interventions. The purpose of this study was to examine whether the introduction of such a workstation among office workers leads to reductions in sitting during working hours, and whether office workers compensate for any reduction in sitting at work by increasing sedentary time and decreasing physical activity (PA) outside work.MethodsOffice workers (n = 40; 55% female) were given a WorkFit-S, sit-to-stand workstation for 3 months. Participants completed assessments at baseline (before workstation installation), 1 wk and 6 wk after the introduction of the workstation, and again at 3 months (postintervention). Posture and PA were assessed using the activPAL inclinometer and ActiGraph GT3X+ accelerometer, which participants wore for 7 d during each measurement phase.ResultsCompared with baseline, the proportion of time spent sitting significantly decreased (75% +/- 13% vs 52% +/- 16% to 56% +/- 13%), and time spent standing and in light activity significantly increased (standing: 19% +/- 12% vs 32% +/- 12% to 37% +/- 15%, light PA: 14% +/- 4% vs 16% +/- 5%) during working hours at all follow-up assessments. However, compared with baseline, the proportion of time spent sitting significantly increased (60% +/- 11% vs 66% +/- 12% to 68% +/- 12%) and light activity significantly decreased (21% +/- 5% vs 19% +/- 5%) during nonworking hours across the follow-up measurements. No differences were seen in moderate-to-vigorous activity during nonworking hours throughout the study.ConclusionThe findings suggest that introducing a sit-to-stand workstation can significantly reduce sedentary time and increase light activity levels during working hours. However, these changes were compensated for by reducing activity and increasing sitting outside of working hours. An intervention of a sit-to-stand workstation should be accompanied by an intervention outside of working hours to limit behavior compensation.