ResumenEste estudio examinó la relación de las variables autoestima y apoyo social con la satisfacción vital en una muestra de 512 adolescentes de ambos sexos, con edades entre 15 y 19 años (promedio de 16.4 años), de la ciudad de Concepción (Chile). Los resultados mostraron que tanto la autoestima como el apoyo social tenían relaciones positivas significativas con la satisfacción vital. El análisis de regresión reveló que ambas variables predecían significativamente el nivel de satisfacción vital, siendo mayor la influencia relativa del apoyo social que de la autoestima. Se proponen diversas explicaciones para los resultados obtenidos. Palabras clave: satisfacción vital, autoestima, apoyo social, adolescentes AbstractThis study examined the relationship between self-esteem, perceived social support and life satisfaction in a sample of 512 male and female adolescents from the city of Concepcion (Chile) between 15 and 19 years. Both self-esteem and social support had significant positive relationships with life satisfaction. Regression analysis showed that both factors predicted life satisfaction, with perceived social support having more influence on life satisfaction than self-esteem. Diverse explanatory factors for obtained results are proposed.

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The scientific evidence supports that physical inactivity in childhood is a reality throughout the world which generates important consequences in the global development of children. Young people with Autism Spectrum Disorder (ASD), due to the characteristics of the disorder they suffer, constitute a group at risk. Therefore, assessing the levels of physical activity (PA) in this group is fundamental for subsequent decision making and implementation of PA promotion programmes. Consequently, the aim of this systematic review was to identify, summarise and analyse the main instruments used to assess the levels of PA (in terms of time and/or intensity) in primary school children diagnosed with ASD. Scientific articles in English and Spanish published in five databases were reviewed: PsycINFO, WOS, SPORTDiscus, Scopus and PubMed, following the guidelines of the PRISMA statement. Out of the 605 articles identified, 12 met the previously established inclusion criteria. The instruments used by the studies analysed were divided into two main groups: accelerometers and questionnaires. Both showed different strengths and limitations but agreed on the low levels registered of PA in children with ASD. For this reason, it is considered necessary that further research be carried out in this field, as well as the development and implementation of sports programmes adjusted and adapted to the needs and characteristics of the ASD group.

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