Kitano Naruki, Jindo Takashi, Yoshiba Kaori, Yamaguchi Daisuke, Fujii Yuya, Wakaba Kyohsuke, Maruo Kazushi, Kai Yuko, Arao Takashi
Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare, 150 Tobuki, Hachioji, Tokyo 192-0001, Japan.
Scand J Work Environ Health. 2025 Jul 1;51(4):312-322. doi: 10.5271/sjweh.4224. Epub 2025 Apr 8.
We examined the effects of a one-year multicomponent workplace intervention that introduced short active breaks from prolonged sitting on occupational movement behaviors and health among Japanese office workers.
This quasi-experimental study was conducted in Tokyo, Japan (2019-2020). In the intervention group (N=172), activity breaks from sitting were introduced to the work schedule (approximately 10 minutes/working hour) together with support strategies to encourage participation (eg, social support, provision of information). Workers in the control group (N=323), who worked at the same company group as those in the intervention group, did not receive any intervention. We evaluated accelerometer-measured sedentary behavior and physical activity during working hours as primary outcomes, and mental health and subjective job performance as secondary outcomes. Propensity score weighting using overlap weights was performed to examine between-group differences in outcomes at one year.
At the one-year follow-up assessment, sedentary behaviors during working hours in the intervention group decreased by 24.4 minutes (95% confidence interval 31.6-17.3), with physical activity increasing by a comparable amount (P for group difference <0.05). However, at the one-year follow-up, psychological distress had worsened and work engagement had declined in the intervention group relative to baseline (P for group difference <0.05).
Our findings suggest that this program is a feasible approach to reducing sedentary behavior and promoting physical activity during work hours among office workers. However, methodological limitations prevent the definitive attribution of the effects to the intervention. Further rigorous research is needed to assess its effectiveness and external validity before broad implementation.
我们研究了一项为期一年的多成分工作场所干预措施的效果，该措施引入了从长时间久坐中短暂主动休息的方式，以观察其对日本上班族职业运动行为和健康的影响。
这项准实验研究在日本东京进行（2019 - 2020年）。干预组（N = 172）在工作时间表中引入了从久坐中进行活动休息的安排（约每工作小时10分钟），同时还采取了鼓励参与的支持策略（如社会支持、提供信息）。对照组（N = 323）的员工与干预组员工在同一家公司集团工作，未接受任何干预。我们将通过加速度计测量的工作时间内久坐行为和身体活动作为主要结果进行评估，将心理健康和主观工作绩效作为次要结果进行评估。使用重叠权重进行倾向得分加权，以检验一年后两组在结果上的差异。
在一年的随访评估中，干预组工作时间内的久坐行为减少了24.4分钟（95%置信区间31.6 - 17.3），身体活动增加了相当的量（组间差异P < 0.05）。然而，在一年的随访中，与基线相比，干预组的心理困扰有所加重，工作投入有所下降（组间差异P < 0.05）。
我们的研究结果表明，该方案是减少上班族工作时间久坐行为和促进身体活动的一种可行方法。然而，方法学上的局限性使得无法将这些效果明确归因于该干预措施。在广泛实施之前，需要进一步进行严谨的研究来评估其有效性和外部效度。
