Fragt man junge Erwachsene, ob sie in ihrer Jugend Sport getrieben haben, bejahen das unabhängig vom … Bildungshintergrund der Eltern rund drei Viertel. Betrachtet man hingegen, wie viel Zeit Jugendliche mit sportlichen Aktivitäten …

The routine and repeated head impacts experienced by athletes in a range of sports can inflict microscopic brain … of concussions — is the strongest predictor of sports-related degenerative brain disease in later life. The observable … injury and take longer to recover than do males in sports played by both sexes. It is unknown whether female athletes also …

. We study nationwide data from the Youth Risk Behavior Surveillance System for 1999, 2001, and 2003 merged with data on …

purpose using descriptive-correlation method sample personnel from the staff and managers in the departments of youth and … sports in Alborz province were investigated as the total number. For data analysis, descriptive statistics and inferential …

current social issue of overwork among school teachers in Japan. Additionally, corporal punishment in youth sports has …Teachers in junior and senior high schools in Japan are expected to voluntarily coach a sports club. For appropriate … school teacher who coaches a sports club emerges endogenously from informational rents arising from asymmetric information …