Department of Public Health Nursing, Japanese Red Cross College of Nursing, Tokyo, Japan.
Department of Preventive Medicine and Public Health, Keio University, Tokyo, Japan.
J Occup Health. 2019 Mar;61(2):189-196. doi: 10.1002/1348-9585.12039. Epub 2019 Feb 7.
Worksite-based programs present a simple and effective approach to facilitate weight reduction in employees. Despite the importance of 1-year weight loss maintenance, studies have generally focused on the short-term effects of weight reduction programs. In addition, little is known about the long-term weight maintenance outcomes in Asian populations. We examined the long-term maintenance effects of a worksite-based weight reduction program among Japanese men with cardiovascular risk factors.
The study sample comprised 58 overweight men with cardiovascular risk factors who had voluntarily participated in a randomized crossover trial involving a 3-month weight reduction program. Participants were followed up for 1 year after the trial concluded, and both groups were merged for the analysis. We compared the changes in body weight before the post-trial follow-up and after 12 months to examine the long-term maintenance effects of the program. Changes in other cardiovascular risk factors (eg, waist circumference, blood pressure, lipid measures, and diabetes-related measures) were also examined.
Both groups of study participants achieved weight loss during the weight reduction program. Total 53 participants (91.4%) completed the 12-month post-trial follow-up. There were no significant changes in mean body weight (mean: -0.11, 95% confidence interval: -0.7-0.49 kg) and other cardiovascular risk factors between the beginning and end of the follow-up period.
This study showed that the worksite-based weight reduction program not only enabled short-term weight loss, but that the participants were able to successfully maintain their weight for 1 year after the program without any supplementary interventions.
以工作场所为基础的项目提供了一种简单有效的方法，可促进员工减轻体重。尽管 1 年体重维持很重要，但研究通常集中在减肥计划的短期效果上。此外，人们对亚洲人群的长期体重维持结果知之甚少。我们检查了日本心血管危险因素男性参与的以工作场所为基础的减肥计划的长期维持效果。
研究样本包括 58 名患有心血管危险因素的超重男性，他们自愿参加了一项涉及 3 个月减肥计划的随机交叉试验。试验结束后，参与者接受了 1 年的随访，两组均合并进行分析。我们比较了试验后随访前和 12 个月后的体重变化，以检查该计划的长期维持效果。还检查了其他心血管危险因素（如腰围、血压、血脂指标和糖尿病相关指标）的变化。
减肥计划期间两组研究参与者均实现了体重减轻。共有 53 名参与者（91.4%）完成了 12 个月的试验后随访。随访期间，平均体重（平均值：-0.11，95%置信区间：-0.7-0.49kg）和其他心血管危险因素均无显著变化。
这项研究表明，以工作场所为基础的减肥计划不仅能够实现短期减肥，而且参与者在没有任何补充干预的情况下能够成功维持体重 1 年。
