%0 Journal Article %@ 1438-8871 %I JMIR Publications %V 19 %N 4 %P e108 %T Effect of a Nine-Month Web- and App-Based Workplace Intervention to Promote Healthy Lifestyle and Weight Loss for Employees in the Social Welfare and Health Care Sector: A Randomized Controlled Trial %A Balk-Møller,Nina Charlotte %A Poulsen,Sanne Kellebjerg %A Larsen,Thomas Meinert %+ Department of Nutrition, Exercise and Sports, Faculty of Science, Copenhagen University, Rolighedsvej 26, Frederiksberg C, 1958, Denmark, 45 27126320, nbm@nexs.ku.dk %K health promotion %K workplace %K smartphone %K weight reduction programs %K Internet %K eHealth %K randomized controlled trial %D 2017 %7 10.04.2017 %9 Original Paper %J J Med Internet Res %G English %X Background: General health promoting campaigns are often not targeted at the people who need them the most. Web- and app-based tools are a new way to reach, motivate, and help people with poor health status. Objective: The aim of our study was to test a Web- and mobile app-based tool (“SoSu-life”) on employees in the social welfare and health care sector in Denmark. Methods: A randomized controlled trial was carried out as a workplace intervention. The tool was designed to help users make healthy lifestyle changes such as losing weight, exercise more, and quit smoking. A team competition between the participating workplaces took place during the first 16 weeks of the intervention. Twenty nursing homes for elderly people in 6 municipalities in Denmark participated in the study. The employees at the nursing homes were randomized either 1:1 or 2:1 on a municipality level to use the SoSu-life tool or to serve as a control group with no intervention. All participants underwent baseline measurements including body weight, waist circumference, body fat percentage, blood pressure, and blood cholesterol level and they filled in a questionnaire covering various aspects of health. The participants were measured again after 16 and 38 weeks. Results: A total of 566 (SoSu-life: n=355, control: n=211) participants were included in the study. At 16 weeks there were 369 participants still in the study (SoSu-life: n=227, control: n=142) and 269 participants completed the 38 week intervention (SoSu-life: n=152, control: n=117). At 38 weeks, the SoSu-life group had a larger decrease in body weight (−1.01 kg, P=.03), body fat percentage (−0.8%, P=.03), and waist circumference (−1.8 cm, P=.007) compared with the control group. Conclusions: The SoSu-life Web- and app-based tool had a modest yet beneficial effect on body weight and body fat percentage in the health care sector staff. Trial Registration: Clinicaltrials.gov NCT02438059; http://clinicaltrials.gov/ct2/show/NCT02438059 (Archived by WebCite at http://www.webcitation.org/6i6y4p2AS) %M 28396303 %R 10.2196/jmir.6196 %U http://www.jmir.org/2017/4/e108/ %U https://doi.org/10.2196/jmir.6196 %U http://www.ncbi.nlm.nih.gov/pubmed/28396303