Sleep quality, Mediterranean diet and cardiorespiratory resistance influence adolescent academic performance



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## Sleep quality, Mediterranean diet and cardiorespiratory resistance influence adolescent academic performance

06/03/2019 |
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The LIFE research group of the UJI with the universities of Castilla-La Mancha, Cádiz, Almería and Zaragoza, studies the effects of physical activity and healthy habits at the adolescent.

The first results of the DADOS project (Sport, ADOlescence and Health), published in several research journals, show that sleep quality, the Mediterranean diet and cardiorespiratory resistance influence academic performance and cognition during adolescence. The study, in which 274 adolescents from secondary schools and sports clubs from all over the province of Castelló participated, reveals new effects derived from the regular practice of physical activity and the adoption of a healthy lifestyle on physical and cognitive health during adolescence.

The research group Physical Activity, Fitness and Health (LIFE) of the Universitat Jaume I in Castelló, under the direction of Diego Moliner, is leading the project whose objective is to analyse the influence of physical activity on health, psychological well-being and academic performance during the stage of compulsory secondary education. The analysis includes the participation of researchers from the universities of Castilla-La Mancha, Cádiz, Zaragoza, Almería and the Universitat Jaume I.

The research team has followed up continuously for three years to find out how the evolution of different habits related to health (physical activity, diet, physical condition and sleep) affect the physical health of adolescents, their levels of psychological well-being and their academic performance. The monitoring has been carried out through the application of validated questionnaires, blood analyses, physical condition tests, anthropometric valuations and the use of wrist accelerometers that allow objectively measuring the physical activity and sleeping patterns of adolescents.

The data obtained are being analysed using different statistical techniques in order to determine which factors influence to a greater or lesser extent in the development of adolescents at the physical, psychological and cognitive levels. Specifically, the doctoral thesis of Mireia Adelantado-Renau, researcher of the LIFE group, has focused on studying the effects of sport, food or sleep, providing scientific evidence on the influence of these habits on academic and cognitive performance during adolescence.

The study published in *Jornal de Pediatria* reveals that the quality of sleep is more related to academic performance than its duration and that time of use of the Internet intervenes in the association between quality of sleep and academic performance. “It is essential to control the time of use of new technologies”, says researcher Mireia Adelantado-Renau, “both to favour a good rest and to improve academic performance”.

A second article published in *Acta Paediatrica* shows that adherence to the Mediterranean diet improves academic performance, thanks, among other mechanisms, to an improvement in the quality of sleep. Finally, a third paper published in the *European Journal of Pediatrics* shows a positive relationship between cardiorespiratory endurance capacity and academic performance of adolescents, suggesting that body composition has a key mediating effect on this association. The LIFE research group considers that “if the results obtained are confirmed in future studies, they could have important implications from an educational and public health point of view”, as they establish easily applicable intervention processes to improve adolescent development and “could help prevent school failure by promoting healthy habits”.

Therefore, families, educators, and policymakers “should take these results into account to turn schools into health promotion centres and create supportive educational programmes that consider factors such as nutrition, sleep, and physical activity as tools for improving academic performance and overall development in childhood and adolescence”, concludes project director Diego Moliner.

The Spanish Ministry of Economy and Competitiveness and the Universitat Jaume I in Castelló have financed the DADOS project. It has been carried out by the LIFE research group of the UJI in collaboration with researchers from the University of Almería, the University of Castilla-La Mancha, the University of Cadiz and the University of Zaragoza.

**ARTICLES**

[The effect of sleep quality on academic performance is mediated by Internet use time: DADOS study](http://dx.doi.org/10.1016/j.jped.2018.03.006). Mireia Adelantado-Renau, Ana Díez-Fernandez, Maria Reyes Beltran-Valls, Alberto Soriano-Maldonado, Diego Moliner-Urdiales. Jornal de Pediatria; online pp. 1-9. (2018). ISSN: 0021-7557

[The influence of adherence to the Mediterranean diet on acadèmic performance is mediated by sleep quality in adolescents](https://onlinelibrary.wiley.com/doi/abs/10.1111/apa.14472). Mireia Adelantado-Renau, Maria Reyes Beltran-Valls, Irene Esteban-Cornejo, Vicente Martínez-Vizcaíno, Alba Maria Santaliestra-Pasías, Diego Moliner-Urdiales. Acta Paediatrica (2018). doi: 10.1111/apa.14472

[Fitness and academic performance in adolescents. The mediating role of leptin: DADOS study](https://www.ncbi.nlm.nih.gov/pubmed/30046894). Adelantado-Renau M, Jiménez-Pavón D, Beltran-Valls MR, Ponce-González JG, Chiva-Bartoll Ó, Moliner-Urdiales D. Eur J Pediatr 2018;177:1555–63. doi:10.1007/s00431-018-3213-z.

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