El objetivo principal de esta Tesis Doctoral fue investigar las asociaciones entre los hábitos saludables y el rendimiento académico en estudiantes de educación secundaria obligatoria. Un total de 274 estudiantes (13.9±0.3 años), participantes del proyecto DADOS (Deporte, ADOlescencia y Salud) fueron incluidos en esta Tesis Doctoral. Los hallazgos revelan que el rendimiento académico se asocia: 1) positivamente con la calidad del sueño; 2) positivamente con la adherencia a la dieta Mediterránea, y la frecuencia diaria de comidas, y negativamente con el riesgo de padecer trastornos de la alimentación; 3) negativamente con la concentración del factor de necrosis tumoral-α; 4) positivamente con la resistencia cardiorrespiratoria y la fuerza muscular; 5) negativamente con el tiempo empleado en actividades de pantalla, y no se asocia con los niveles de actividad física. La presente Tesis Doctoral indica una asociación positiva entre los hábitos saludables y el rendimiento académico en estudiantes de educación secundaria obligatoria.
High academic performance during adolescence is considered a strong predictor of future work conditions and health status. Since adolescence is an important time frame in terms of development of academic skills and establishment of healthy lifestyle factors, it is likely that these factors have an influence on adolescents’ academic performance. Thus, the main aim of this PhD Thesis was to investigate the associations and the possible mechanisms between healthy lifestyle factors and academic performance in secondary school students.
A total of 274 secondary school students (aged 13.9±0.3 years) from the DADOS (Deporte, ADOlescencia y Salud) study were involved in the present PhD Thesis.
The main findings of the present PhD Thesis reveal that academic performance in secondary school students is 1) positively associated with sleep quality (mediated by internet use time); 2) positively associated with adherence to the Mediterranean diet (mediated by sleep quality) and daily meal frequency, and negatively associated with the risk of eating disorders; 3) negatively associated with tumor necrosis factor-α; 4) positively associated with cardiorespiratory fitness (mediated by leptin concentration and body composition) and muscular strength (mediated by leptin concentration); 5) not associated with physical activity levels, and negatively associated with screen media usage.
Overall, the present PhD Thesis indicates a positive association between healthy lifestyle factors and academic performance in secondary school students.
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