Physical Activity and Stress of Children and Adolescents during the COVID-19 Pandemic in Germany-A Cross-Sectional Study in Rural Areas.

Although infection with SARS-CoV-2 appears to be less dangerous for children and adolescents, research indicates that the measures to contain the COVID-19 pandemic have had and continue to have negative effects on children's and adolescents' mental health and physical activity (PA). Due to the different health policies, country-specific studies as well as studies in different phases of the pandemic are important to obtain a differentiated picture of the effects of the pandemic. This study set out to investigate children's and adolescents' PA, stress, and well-being as well as the associations between these two variables during a phase of a gradual decline in measure to contain the pandemic in Germany.

[Sport activities from the lifespan perspective].

Considering lifespan developmental psychology, engagement in sport can be seen as a dynamic process of phases of participation and inactivity that varies from individual to individual. Depending on the individual biography, specific categories and patterns of sport participation evolve over a lifetime. Changes of sport participation rates over the last 30 years are discussed on the basis of general social changes.