Combining web-based gamification and physical nudges with an app (MoveMore) to promote walking breaks and reduce sedentary behavior of office workers: Field study

Andre Mamede Soares Braga, Gera Noordzij, Joran Jongerling, M Snijders, A Schop-Etman, Semiha Denktas

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Abstract

Background: Sedentary behavior (SB) and lack of physical activity (PA) have been associated with poorer health outcomes and are increasingly prevalent in individuals working in sedentary occupations such as office jobs. Gamification and nudges have attracted attention as promising strategies to promote changes in health behavior. However, most effectiveness studies thus far lacked active controls, and few studies have tested interventions combining these strategies. Objective: This study investigates the effectiveness of combining a gamified digital app with physical nudges to increase PA and reduce SB in Dutch office workers. Methods: Employees in the municipality of Rotterdam (N=298) from two office locations were randomized at the location level to either a 10-week intervention, combining a 5-week gamification phase encompassing a gamified digital app with social support features and a 5-week physical nudges phase, or to an active control (ie, basic digital app with self-monitoring and goal setting). The primary outcome was the daily step count, objectively measured via accelerometers. Secondary outcomes were self-reported PA and SB measured at baseline and at 5, 10, and 14 weeks. Mixed effects models were used to analyze the effects of the intervention on the outcome measures. Results: A total of 78.5% (234/298) of participants completed the study and provided accelerometer data, whereas 36.9% (110/298) participants completed the self-report measures at 14 weeks. In the gamification phase, step count data were missing for 13.5% (473/3492) of observations in the control and 11.4% (445/3888) in the intervention condition; however, these percentages increased to 39.6% (1154/2910) and 59.6% (1932/3492) at follow-up, respectively. During the gamification phase, intervention participants increased their number of daily steps by 634 (95% CI 154.2-1113.8; P=.01) more than participants in the control group, after controlling for relevant factors. Improvements were not sustained during the physical nudges phase (P=.76) or follow-up (P=.88). Conclusions: A digital intervention with gamification and social support features significantly increased the step count of office workers compared with an active control. Physical nudges in the workplace were insufficient to promote the maintenance of behavioral changes achieved in the gamification phase. Future research should explore the long-term effectiveness of similar gamified digital interventions.

Original languageEnglish
Article numbere19875
JournalJournal of Medical Internet Research
Volume23
Issue number4
DOIs
Publication statusPublished - 12 Apr 2021

Bibliographical note

Funding Information:
The authors would like to thank Ruth Plaggenborg and the team at SelfCare for designing and providing the MySelfCare and SelfCarePro apps used in the control and intervention locations, respectively, and for their contributions to the design and implementation of the study. The authors would also like to thank Berdi Christiaansen and other staff and participants from the municipality of Rotterdam for their involvement and contributions to the MoveMore study. Finally, the authors would like to thank Healthy'R [1], the expertise center on health behavior of the municipality of Rotterdam and Erasmus University Rotterdam. Healthy'R combines scientific knowledge in the field of behavior and health with practical knowledge and experiences to develop and investigate measures that lead to healthier choices of people in Rotterdam. The costs of the accelerometers, physical nudges, and digital apps used in this study were funded by the municipality of Rotterdam. The content is solely the responsibility of the authors and does not necessarily represent the official views and interests of the funders or authors' affiliated academic institutions. The funders had no role in the design of the study and were not involved in data analysis, decision to publish, or preparation of the manuscript.

Publisher Copyright:
© 2021 André Mamede, Gera Noordzij, Joran Jongerling, Merlijn Snijders, Astrid Schop-Etman, Semiha Denktas.

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