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. 2020 Mar 2;8(3):e14118.
doi: 10.2196/14118.

A Mobile Phone Intervention to Improve Obesity-Related Health Behaviors of Adolescents Across Europe: Iterative Co-Design and Feasibility Study

Anne Martin #  1 , Maurizio Caon #  2 , Fulvio Adorni  3 , Giuseppe Andreoni  4 , Antonio Ascolese  5 , Sarah Atkinson  6 , Kim Bul  7 , Carme Carrion  8 , Conxa Castell  9 , Valentina Ciociola  3 , Laura Condon  10 , Mireia Espallargues  11   12 , Janet Hanley  13 , Nithiya Jesuthasan  3 , Claudio L Lafortuna  14 , Alexandra Lang  6 , Federica Prinelli  3 , Elisa Puidomenech Puig  11   12 , Sarah A Tabozzi  14 , Brian McKinstry  15
Affiliations

A Mobile Phone Intervention to Improve Obesity-Related Health Behaviors of Adolescents Across Europe: Iterative Co-Design and Feasibility Study

Anne Martin et al. JMIR Mhealth Uhealth. .

Abstract

Background: Promotion of physical activity, healthy eating, adequate sleep, and reduced sedentary behavior in adolescents is a major priority globally given the current increase in population health challenges of noncommunicable diseases and risk factors such as obesity. Adolescents are highly engaged with mobile technology, but the challenge is to engage them with mobile health (mHealth) technology. Recent innovations in mobile technology provide opportunities to promote a healthy lifestyle in adolescents. An increasingly utilized approach to facilitate increased engagement with mHealth technology is to involve potential users in the creation of the technology.

Objective: This study aimed to describe the process of and findings from co-designing and prototyping components of the PEGASO Fit for Future (F4F) mHealth intervention for adolescents from different cultural backgrounds.

Methods: A total of 74 adolescents aged 13 to 16 years from Spain, Italy, and the United Kingdom participated in the co-design of the PEGASO F4F technology. In 3 iterative cycles over 12 months, participants were involved in the co-design, refinement, and feasibility testing of a system consisting of diverse mobile apps with a variety of functions and facilities to encourage healthy weight-promoting behaviors. In the first iteration, participants attended a single workshop session and were presented with mock-ups or early-version prototypes of different apps for user requirements assessment and review. During the second iteration, prototypes of all apps were tested by participants for 1 week at home or school. In the third iteration, further developed prototypes were tested for 2 weeks. Participants' user experience feedback and development ideas were collected through focus groups and completion of questionnaires.

Results: For the PEGASO F4F technology to be motivating and engaging, participants suggested that it should (1) allow personalization of the interface, (2) have age-appropriate and easy-to-understand language (of icons, labels, instructions, and notifications), (3) provide easily accessible tutorials on how to use the app or navigate through a game, (4) present a clear purpose and end goal, (5) have an appealing and self-explanatory reward system, (6) offer variation in gamified activities within apps and the serious game, and (7) allow to seek peer support and connect with peers for competitive activities within the technology.

Conclusions: Incorporating adolescents' preferences, the PEGASO F4F technology combines the functions of a self-monitoring, entertainment, advisory, and social support tool. This was the first study demonstrating that it is possible to develop a complex mobile phone-based technological system applying the principles of co-design to mHealth technology with adolescents across 3 countries. The findings from this study informed the development of an mHealth system for healthy weight promotion to be tested in a controlled multinational pilot trial.

Keywords: adolescents; co-design; focus groups; health behavior; mHealth; mobile app; mobile phone; obesity; youth.

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Conflict of interest statement

Conflicts of Interest: None declared.

Figures

Figure 1
Figure 1
Screenshot of the PEGASO Fit For Future Companion app presented at the third iteration.
Figure 2
Figure 2
Screenshot of the PEGASO Fit For Future eDiary app presented at the third iteration.
See this image and copyright information in PMC

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