title: Physical Activity and Screen-based Activity in Healthy Development of School-aged Children.
abstract: OBJECTIVE
  Physical and screen-based activity in adolescents plays a crucial role in future health outcomes. Therefore, the aim of the study was to examine the associations of physical activity and screen-based activity with behavioural and psychosocial characteristics of school-aged children.
  
  
  METHODS
  Data on 11, 13 and 15 years old elementary school pupils (N=9,014; mean age=13.59) who participated in the cross-sectional Health Behaviour in School-aged Children 2009/2010 study in the Czech Republic and the Slovak Republic were analyzed. The associations of vigorous physical activity and screen-based activity with substance use, violent behaviour, eating habits and school-related outcomes adjusted for age were explored using logistic regression.
  
  
  RESULTS
  Vigorous physical activity was positively associated with some of the health-related behaviours (smoking, breakfast consumption, vegetable and fruit consumption) and school related outcomes (perceived school achievement and school pressure), with gender and country based differences. Screen-based activity was significantly associated with all examined health-related behaviours and school related outcomes with only some country and gender based differences.
  
  
  CONCLUSIONS
  Vigorous physical activity is positively associated with healthy development of adolescents. Screen-based behaviour shows an inverse relationship with adolescents' healthy development, especially in the group of 11 and 13 years old children. Supporting physical activity conducive environments might lead to a reduction in screen-based behaviour in adolescents and should be highlighted in health-promoting strategies.
authors: Department of Recreation and Leisure Studies, Faculty of Physical Culture, Palacký University Olomouc, Olomouc, Czech Republic.
authors: Zdeněk
authors: Z
authors: Hamřík
authors: Graduate School Košice Institute for Society and Health, Šafárik University in Košice, Košice, Slovak Republic.|Department of Health Psychology, Medical Faculty, Šafárik University in Košice, Košice, Slovak Republic.|Olomouc University Social Health Institute, Palacký University Olomouc, Olomouc, Czech Republic.
authors: Daniela
authors: D
authors: Bobáková
authors: Department of Recreation and Leisure Studies, Faculty of Physical Culture, Palacký University Olomouc, Olomouc, Czech Republic.
authors: Michal
authors: M
authors: Kalman
authors: Graduate School Košice Institute for Society and Health, Šafárik University in Košice, Košice, Slovak Republic.|Department of Health Psychology, Medical Faculty, Šafárik University in Košice, Košice, Slovak Republic.
authors: Zuzana Dankulincová
authors: ZD
authors: Veselská
authors: Institute of Mathematics, Science Faculty, Šafárik University in Košice, Košice, Slovak Republic.
authors: Daniel
authors: D
authors: Klein
authors: Graduate School Košice Institute for Society and Health, Šafárik University in Košice, Košice, Slovak Republic.|Department of Health Psychology, Medical Faculty, Šafárik University in Košice, Košice, Slovak Republic.|Olomouc University Social Health Institute, Palacký University Olomouc, Olomouc, Czech Republic.
authors: Andrea Madarasová
authors: AM
authors: Gecková
mesh_terms: D000124:Achievement; D000293:Adolescent; D000294:Adolescent Behavior; D041923:Adolescent Development; D003201:Computers / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D018153:Czech Republic; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D009043:Motor Activity; D057185:Sedentary Behavior; D018154:Slovakia; D012944:Social Support; D013690:Television / Q000706:statistics & numerical data*
keywords: adolescents; eating habits; risky and aggressive behaviour; school-related outcomes; screen-based activity; vigorous physical activity