Cross-sectional associations between occupational and leisure-time sitting, physical activity and obesity in working adults
Cross-sectional associations between occupational and leisure-time sitting, physical activity and obesity in working adults
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DOI：
10.1016/j.ypmed.2011.12.020
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发表时间：
2012-03-01
影响因子：
5.1
通讯作者：
Bauman, Adrian E.
中科院分区：
文献类型：
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作者：
Chau, Josephine Y.;van der Ploeg, Hidcle P.;Bauman, Adrian E.
瞄准研究职业和休闲时间坐着，身体活动和肥胖之间的关联。我们分析了2007-08年澳大利亚国家健康调查（n = 10，785）的工人数据。参与者报告了他们在工作中的活动（主要是坐着，站着，走路或重体力劳动），与交通有关的步行，休闲时间坐着和体力活动。客观测量体重指数。调整后的考克斯比例风险回归模型检验了职业活动类别、闲暇时间坐着、体力活动和肥胖风险之间的关联。相当大比例的男子（42%）和妇女（47%）大多坐在工作岗位上。坐着工作的工人在休闲时间比大多数站立，行走或重体力劳动的工人更有可能充分活动（RR分别为0.88，0.80，0.86）。与体力活动和休闲时间坐着无关，坐着工作的工人比站着工作的工人有更高的超重/肥胖风险（RR = 0.88，95%CI：0.82-0.95）。与体力活动和职业活动无关，每天休闲时间坐着少于4小时的工人比每天休闲时间坐着超过4小时的工人肥胖风险显著降低（RR = 0.77，95%CI：0.69-0.87）。坐着的时间和体力活动与肥胖独立相关。休闲时间坐着可能比职业坐着与肥胖风险有更强的关联。(C)2011 Elsevier Inc. All rights reserved.
Aim. To examine associations between occupational and leisure-time sitting, physical activity and obesity in working adults.Methods. We analyzed data from workers from the 2007-08 Australian National Health Survey (n = 10,785). Participants reported their activity at work (mostly sitting, standing, walking, or heavy labor), transport-related walking, leisure-time sitting and physical activity. Body mass index was objectively measured. Adjusted Cox proportional hazard regression models examined associations between occupational activity category, leisure-time sitting, physical activity and obesity risk.Results. Substantial proportions of men (42%) and women (47%) mostly sit at work. Workers with sitting jobs were significantly more likely to be sufficiently active during leisure-time than workers with mostly standing, walking or heavy labor jobs (RR = 0.88, 0.80, 0.86 respectively). Workers with mostly sitting jobs had significantly higher overweight/obesity risk than workers with mostly standing jobs (RR = 0.88,95% CI: 0.82-0.95) independent of physical activity and leisure-time sitting. Workers with leisure-time sitting of less than four hours per day had significantly lower obesity risk than workers with four or more hours per day of leisure-time sitting (RR = 0.77, 95%CI: 0.69-0.87) independent of physical activity and occupational activity.Conclusions. Sitting time and physical activity are independently associated with obesity. Leisure-time sitting may have a stronger association with obesity risk than occupational sitting. (C) 2011 Elsevier Inc. All rights reserved.