School of Sociology, Social Policy & Social Work, Queen’s University Belfast, Belfast, UK and Centre of Excellence for Public Health (NI), Queen’s University Belfast, Belfast, UK.
Occup Environ Med. 2013 Jan;70(1):3-8. doi: 10.1136/oemed-2012-100808. Epub 2012 Sep 26.
To examine whether exposure to workplace stressors predicts changes in physical activity and the risk of insufficient physical activity.
Prospective data from the Finnish Public Sector Study. Repeated exposure to low job control, high job demands, low effort, low rewards and compositions of these (job strain and effort-reward imbalance) were assessed at Time 1 (2000-2002) and Time 2 (2004). Insufficient physical activity (<14 metabolic equivalent task hours per week) was measured at Time 1 and Time 3 (2008). The effect of change in workplace stressors on change in physical activity was examined using fixed-effects (within-subject) logistic regression models (N=6665). In addition, logistic regression analysis was applied to examine the associations between repeated exposure to workplace stressors and insufficient physical activity (N=13 976). In these analyses, coworker assessed workplace stressor scores were used in addition to individual level scores.
The proportion of participants with insufficient physical activity was 24% at baseline and 26% at follow-up. 19% of the participants who were sufficiently active at baseline became insufficiently active at follow-up. In the fixed-effect analysis, an increase in workplace stress was weakly related to an increase in physical inactivity within an individual. In between-subjects analysis, employees with repeated exposure to low job control and low rewards were more likely to be insufficiently active at follow-up than those with no reports of these stressors; fully adjusted ORs ranged from 1.11 (95% CI 1.00 to 1.24) to 1.21 (95% CI 1.05 to 1.39).
Workplace stress is associated with a slightly increased risk of physical inactivity.
探讨工作压力源暴露是否会预测身体活动的变化和身体活动不足的风险。
这项前瞻性研究的数据来自芬兰公共部门研究。在时间 1（2000-2002 年）和时间 2（2004 年）时评估了反复出现的低工作控制、高工作要求、低努力、低回报以及这些因素的组合（工作紧张和努力-回报失衡）。在时间 1 和时间 3（2008 年）测量了身体活动不足（<14 代谢当量任务小时/周）。使用固定效应（个体内）逻辑回归模型（N=6665）检查工作场所压力源变化对身体活动变化的影响。此外，逻辑回归分析应用于重复暴露于工作场所压力源与身体活动不足（N=13976）之间的关系。在这些分析中，除了个体水平评分外，还使用了同事评估的工作场所压力源评分。
在基线时有 24%的参与者身体活动不足，在随访时有 26%的参与者身体活动不足。在基线时足够活跃的参与者中有 19%在随访时变得身体活动不足。在固定效应分析中，个体内的工作场所压力增加与身体活动减少之间存在微弱关联。在个体间分析中，反复暴露于低工作控制和低回报的员工在随访时更有可能身体活动不足，而没有报告这些压力源的员工则不然；完全调整后的 OR 范围为 1.11（95%CI 1.00 至 1.24）至 1.21（95%CI 1.05 至 1.39）。
工作场所压力与身体活动不足的风险略有增加相关。
