RT Journal Article T1 Mobile Applications and Healthy Habits of Adolescents, a Strange Couple: Pilot Study of the Efficacy of the Healthy Jeart App A1 Merino Godoy, María Ángeles A1 Yot Domínguez, Carmen A1 Villaciervos Moreno, Patricia A1 Moreno Sánchez, Emilia AB The present study aims to analyse the healthy habits of a group of adolescents before andafter an educational intervention using the Healthy Jeart mobile app. This is the first pilot study onHealthy Jeart, based on a single intervention with experimental and control groups. The participantswere secondary education students in the third and fourth years, from an educational centre in Huelva(Spain). They were distributed between a control group and an experimental group. Informationabout their habits was obtained through a questionnaire prepared from the HSBC (Health Behaviourin School-aged Children) instrument, which was administered before and after the intervention.Although the results do not indicate a substantial change in the habits of the participants, there weresome intragroup differences. In the experimental group, a difference was obtained in the feeling ofbeing fit and healthy. The global perspective on health of the app would explain this change PB MDPI SN 2071-1050 (electrónico) YR 2022 FD 2022 LK http://hdl.handle.net/10272/20882 UL http://hdl.handle.net/10272/20882 LA eng NO Merino-Godoy, M. Á., Yot-Domínguez, C., Villaciervos-Moreno, P., & Moreno-Sánchez, E. (2022). Mobile Applications and Healthy Habits of Adolescents, a Strange Couple: Pilot Study of the Efficacy of the Healthy Jeart App. In Sustainability (Vol. 14, Issue 9, p. 5249). MDPI AG. https://doi.org/10.3390/su14095249 NO This study was framed within the research project entitled “Design of a mobile applicationto educate young people in healthy habits”, code PI 047/16, funded by the Board of Health, accordingto the Resolution of 20 December 2016 of the General Secretariat for Research, Development andInnovation in Health, which granted funds to finance biomedical research, development and innovation in health sciences in Andalusia for the year 2016, for “Lines of Innovation, Development andInnovation Projects in Biomedicine and Health Sciences”. This was the only project funded in Huelvain this call of the Progress and Health Foundation in 2016. In 2020 and 2021, funding was continuedthrough chairs. Recently, the continuation of the project has been funded within the framework ofthe Operational Program ERDF Andalusia 2014–2020, named “App para educar a los jóvenes enhábitos saludables basada en la evaluación mediante Ciencia de los Datos” (Ref. UHU-202062) (titletranslated into English: “App to educate young people in healthy habits based on evaluation throughdata science”).The authors thank all the participating families and the CEIP (Early Childhoodand Primary Education School) “Salesianos” Cristo Sacerdote, for their selfless participation in thedata gathering process, as well as the entities that collaborated in this project, funded by the Boardof Health, since their economic and generalised support keeps this project alive: Atlantic CopperFoundation, Cei.mar (Campus de Excelencia Internacional del mar), EXMO, Colegio Oficial DeEnfermería de Huelva, Cátedra Aiqbe, Cátedra de Innovación Social de Aguas de Huelva, Cátedra dela Provincia de la Diputación de Huelva and Cátedra CEPSA. The authors also thank the following prestigious entities for contributing to this project: Association for Community Nursing (AEC),Spanish Association for Pediatric Nursing (AEEP), Spanish Association of Nursing for Mental Health(AEESME), Andalusian Association for Community Nursing (ASANEC), Andalusian Federation ofFamilies and Persons with Mental Health Problems (FEAFES), Ibero-American Network of HealthPromoting Universities (RIUPS), Andalusian Society of Family and Community Medicine (SAMFyC),European Network of Health Promoting Schools (REUPS), Spanish Society of Pedagogy (SEP) andGeneral Board of Nursing. All the people and entities who collaborated in this health educationproject, based on new technologies, have allowed Healthy Jeart to become a working project that canhelp in educational centres and homes, which can now be transformed into health education centres DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026