@Article{info:doi/10.2196/54214, author="Sobrinho, Andressa Crystine da Silva and Gomes, Grace Angelica de Oliveira and Bueno J{\'u}nior, Carlos Roberto", title="Developing a Multiprofessional Mobile App to Enhance Health Habits in Older Adults: User-Centered Approach", journal="JMIR Form Res", year="2024", month="Apr", day="15", volume="8", pages="e54214", keywords="information and communications technologies; ICTs; health care; digital inclusion; focus groups; health promotion; user; usability; health literacy; digital competencies; digital skills; mobile phone", abstract="Background: Although comprehensive lifestyle habits are crucial for healthy aging, their adherence tends to decline as individuals grow older. Sustaining a healthy life over time poses a motivational challenge. Some digital tools, such as smartphone apps aimed at promoting healthy habits, have been used to counteract this decline. However, a more profound investigation is necessary into the diverse experiences of users, particularly when it concerns older adults or those who are unfamiliar with information and communications technologies. Objective: We aimed to develop a mobile app focused on promoting the health of older adults based on the principles of software engineering and a user-centered design. The project respected all ethical guidelines and involved the participation of older adults at various stages of the development of the app. Methods: This study used a mixed methods approach, combining both quantitative and qualitative methodologies for data collection. The study was conducted in Ribeir{\~a}o Pr{\^e}to, S{\~a}o Paulo, Brazil, and involved 20 older adults of both genders who were aged ≥60 years and enrolled in the Physical Education Program for the Elderly at the University of S{\~a}o Paulo. The research unfolded in multiple phases, encompassing the development and refinement of the app with active engagement from the participants. Results: A total of 20 participants used a mobile health app with an average age of 64.8 (SD 2.7) years. Most participants had a high school education, middle-class status, and varying health literacy (mean score 73.55, SD 26.70). Overall, 90{\%} (18/20) of the participants owned smartphones. However, 20{\%} (4/20) of the participants faced installation challenges and 30{\%} (6/20) struggled with web-based searches. The focus groups assessed app usability and satisfaction. Adjustments increased satisfaction scores significantly (Suitability Assessment of Materials: 34.89{\%} to 70.65{\%}; System Usability Scale: 71.23 to 87.14). Participant feedback emphasized font size, navigation, visual feedback, and personalization, and suggestions included health device integration, social interaction, and in-app communication support. Conclusions: This study contributes to the development of health care technologies tailored to the older adult population, considering their specific needs. It is anticipated that the resulting app will serve as a valuable tool for promoting healthy habits and enhancing the quality of life for older adults. ", issn="2561-326X", doi="10.2196/54214", url="https://formative.jmir.org/2024/1/e54214", url="https://doi.org/10.2196/54214", url="http://www.ncbi.nlm.nih.gov/pubmed/38619865" }