To investigate the normative trajectory of self-esteem across the life span, this meta-analysis
synthesizes the available longitudinal data on mean-level change in self-esteem. The …

OBJECTIVE: To present a conceptual model explaining the mechanisms for the effect of
physical activity on cognitive and mental health in young people and to conduct a systematic …

Background Evidence suggests that physical self-concept is associated with physical activity
in children and adolescents, but no systematic review of this literature has been conducted …

Background School-based interventions are thought to be the most universally applicable
and effective way to counteract low physical activity (PA) and fitness although there is …

Physical activity interventions are often implemented in the adolescent mental health care
practice to prevent or treat psychosocial problems. To date, no systematic review of the effect …

Background Rates of physical activity decline throughout adolescence, and evidence
indicates that this has an adverse impact on psychological health. This paper aims to …

Background Research has shown that a clear decline in physical activity among girls
starting in early adolescence. Therefore, adolescent girls have been identified as a key …

This meta-analysis investigated the normative development of domain-specific self-
evaluations (also referred to as self-concept or domain-specific self-esteem) by synthesizing …

Purpose Physical activity at school can improve the mental health of all children–especially
if it targets children's developmental needs and is carried out in a positive social climate. The …

This narrative review describes the available scientific evidence regarding promising school-
based strategies to increase physical activity of adolescents. We conducted a literature …