Ludmila Miklánková, Milan Elfmark, Erik Sigmund, Josef Mitáš, Karel Frömel
2009 Acta Univ. Palacki. Olomuc., Gymn   unpublished
The main aim of this study was to assess potential diff erences between groups of preschool children meeting and not meeting health recommendations for physical activity (PA) from the aspect of so called indicators of physical activity (active energy expenditure, number of steps). The number of steps was measured by Yamax Digi-Walker SW-200 pedometers (Yamax Corporation, Tokyo, Japan) and the active energy expenditure was measured by Caltrac (Muscle Dynamics Fitness Network, Torrance,
more » ... ) accelerometers. Evaluation of PA from the aspect of so called health criteria was realized following the criteria of Frömel, Novosad and Svozil (1999), who recommend values of so called health criteria of PA. Meeting these criteria, it is possible to suppose that PA positively aff ects the healthy development of an individual. The sample consisted of 200 preschool children. Forty nine of these children (30 boys and 19 girls) were labeled as group A (children who did not meet the recommended values at least in one of the health criteria of PA). Group B (children who met the recommended values at least in one of the mentioned criteria of PA) consisted of 151 children (74 boys and 77 girls). The Mann-Whitney U test was used to test the statistical signifi cance of possible diff erences between groups A and B and also between boys and girls within these groups as well. In all monitored parts of a week, as well as in both monitored parts of a day, a signifi cant diff erence (p < .001) was found between groups A and B in both indicators of PA. Regarding these variables, the smallest diff erences (p < .02) were observed within the time spent at school. Our results confi rm that a stay at kindergarten belongs among the relevant parts of a day from the aspect of children's physical activity in the sense of a very "problematic" part of a day, when the values of active energy expenditure and steps are decreased almost by 50% even in children physically active outside the school. On the other hand, a kindergarten is a proper place for children with hypokinetic behavior, who can be activated by an adequate incidence of school physical regimen.