Monitoring of the quality of body posture and of the relation between body posture and physical fitness at young school-age children

Title: Komparácia fyziologických a motorických determinantov mladých elitných hráčov futbalu s cieľom ich predikcie do reprezentačného výberu ČR Objectives: Comparative analysis of physiological and motive determints of young elite soccer players with regard to predicton to top elite CR representation Methods: The monitored group of young football players, who play at the top league level and in the youth national team of the Czech Republic, may have met the pre-determined criteria. Laboratory testing is performed in the Laboratories of Sports Motor Motors (LSM) of the Faculty of Physical Education and Sport, Charles University (FTVS UK), always in the morning from 8:00 - 12:00. The field reduction was at least allowed by 10ř C due to the objectification of the measured data and always took place in the afternoon 14:00 - 16:00 on artificial grass 4th generation. Based on body composition, we used the bioelectric impedance TANITA MC-980. Footscan (Rsscan International, Belgium). For the purpose of the explosion of the force of the lower limbs, we used KISTLER 8611 force plates (Kistler, Switzerland), on which the frequency was set to 1000 Hz. Cybex Humac Norma (Cybex NORM®, Humac, CA, USA). For field testing, we used the following tests: Sprint at 5 and 10 meters, Flying 20 meters sprint, Agility..