Organized sport is a context in which to promote positive youth development (PYD).
Interventions with a PYD lens are often implemented to promote a wide range of physical or …

Background Physical activity among children and adolescents is associated with lower
adiposity, improved cardio‐metabolic health, and improved fitness. Worldwide, fewer than …

Reduced physical activity (PA) and prolonged screen time (ST) negatively influence health-
related quality of life (HRQoL), a protective factor against illness and mortality. Studies …

As modern lifestyles offer ever more opportunities for a sedentary existence, physical activity
has become, for many, a marginal aspect of life. Too little physical activity is linked to …

This study aimed to highlight the relationship between moderate-to-vigorous physical activity
(MVPA) as assessed by accelerometer devices and the Physical Activity Questionnaire for …

Using self-reported questionnaires, several studies found that social isolation during the
COVID-19 pandemic has significantly changed the level of physical activity (PA) in children …

Methods Sixty-three healthy adolescents aged 14 to 18 years were included (participants'
characteristics are outlined in Supplementary File S1, available online). Baseline …

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

Aim The COVID-19 pandemic has forced the education system to undergo changes, which
have also affected universities. E-learning became the main form of education, reducing …

Purpose In this study, longitudinal associations between sports participation and health-
related quality of life (HRQoL) were explored. Sports participation was operationalized as …