Kouvonen Anne, Kivimäki Mika, Elovainio Marko, Virtanen Marianna, Linna Anne, Vahtera Jussi
Department of Psychology, University of Helsinki, P.O. BOX 9, FI-00014, Finland.
Prev Med. 2005 Aug;41(2):532-9. doi: 10.1016/j.ypmed.2005.01.004.
High work stress could decrease physical activity but the evidence of the relationship has remained equivocal. The present study examined the association between job strain and leisure-time physical activity in a large sample of employees.
Cross-sectional data related to a cohort of 46,573 Finnish public sector employees aged 17-64 years. Job strain was measured by questions derived from Karasek's Demand/Control model. Leisure-time physical activity was defined using activity metabolic equivalent task (MET) index. Analysis of variance was used to compare means of MET-hours/week by job strain categories and by tertiles of job control and job demands.
Women and men with high strain (low control and high demands), passive jobs (low control and low demands), and low job control had 2.6 to 5.2 MET-hours/week less than their counterparts with low strain and high control, respectively, even after the effects of age, marital status, socioeconomic status, job contract, smoking, heavy drinking, and trait anxiety were taken into account. Active jobs (high control and high demands) were additionally associated with lower mean of MET-hours in men and in older workers.
Our findings suggest an independent, albeit substantially weak, association between higher work stress and lower leisure-time physical activity.
高工作压力可能会减少身体活动，但两者关系的证据仍不明确。本研究在大量员工样本中检验了工作压力与休闲时间身体活动之间的关联。
横断面数据来自46573名年龄在17 - 64岁的芬兰公共部门员工队列。工作压力通过源自Karasek需求/控制模型的问题进行测量。休闲时间身体活动使用活动代谢当量任务（MET）指数进行定义。方差分析用于比较按工作压力类别以及按工作控制和工作需求三分位数划分的每周MET小时数的均值。
即使在考虑了年龄、婚姻状况、社会经济地位、工作合同、吸烟、大量饮酒和特质焦虑的影响后，高压力（低控制和高需求）、被动工作（低控制和低需求）以及低工作控制的女性和男性每周的MET小时数分别比低压力和高控制的同龄人少2.6至5.2小时。主动工作（高控制和高需求）还与男性和年长员工的MET小时数均值较低有关。
我们的研究结果表明，较高的工作压力与较低的休闲时间身体活动之间存在独立关联，尽管这种关联相当微弱。
