Hlavním cílem výzkumu je na základě stanovení úrovně pohybové aktivity a základních komponent tělesné zdatnosti u dětí ve věku 10-12 let objasnit sílu vztahů mezi těmito proměnnými. Výběrové soubory tvořilo 107 chlapců a 109 dívek ve věku 10-12 let z libereckého regionu. U každého probanda byly zjištěny základní somatické parametry (tělesná výška, tělesná hmotnost, množství podkožního tuku). Následně bylo vybráno sedm motorických testů z baterií FITNESSGRAM a UNIFITTEST (6-60) pro zhodnocení komponent tělesné zdatnosti. K měření úrovně pohybové aktivity byly využity akcelerometry. Naměřené výsledky úrovně pohybové aktivity a komponent tělesné zdatnosti byly podrobeny vztahové analýze. Na základě korelační analýzy nebyly zjištěny u měřených souborů chlapců a dívek ve věku 10-12 let žádné významné závislosti. Na základě závěrů studie doporučujeme pro dané věkové kategorie informativní využívání testových baterií a hodnocení úrovně pohybové aktivity ve školním i mimoškolním prostředí s využitím moderních technologií.

Research on 100-year trends in physical fitness among youth in the territory of the former Czechoslovakia: Design and methods of the project Background: In 2023, exactly 100 years will pass since the first nationwide testing of the physical fitness level among youth in the territory of the former Czechoslovakia. In the context of this completely unique and unrepeatable opportunity, there is the possibility of finding objectively measured secular trends in physical fitness in our countries. Objective: The main objective of the project is, based on the historical methods known to us, to implement a comprehensive objective testing of the physical fitness level among 11-19-year-old youth in the territory of the former Czechoslovakia with an interval of 100 years and to compare the results with the original study. The purpose of this article is to present the research design including detailed methods. Methods: The methods of repeated testing of the physical fitness level are reduced, however, it is prepared in accordance with the earlier historical methods. The study will be carried out on a research group of 11-19-year-old individuals selected from the expected final number of 20 participating schools (15 Czech and 5 Slovak schools). The schools will be selected by a stratified selection from the preserved historical list of originally participating schools. The testing will include a total of 3 somatic measurements (body height, sitting height and body weight) and 5 motor tests (standing broad jump, standing small ball throw, pull-ups, speed run and endurance run). Data collection is planned for a period exactly corresponding to 100 years from the initial research (March to April 2023). Results: Among other things, the results will contribute to the accurate determination of evidence-based long-term trends in physical fitness in our youth population. Conclusions: The presented design of the study introduces, in addition to the rationale, goals, expected outputs, detailed research methods, which are aimed at finding objectively measured 100-year trends in physical fitness among youth in our territory. At the same time, the research project will contribute to increasing the awareness of experts and the public about the given area.

The main aim is to present the sports game Brenbal as an attractive game suitable for the development of aerobic fitness for children of school age within outdoor activities (PE, courses, residential outdoor schools, etc.). The research part of the project is dealing with the intensity of motion load using the Brenbal game. 76 probands 12-13 years of age have participated in measuring research realised at two elementary schools in Liberec. To implement the project monitors of the heart rate, Polar 800CX were used allowing individual setting up the zones of intensity. Zones 2-4 (60-89% HR max) were tracked dominantly and the number of minutes spent in them. The measured section was a 45-minute teaching unit. During the implementation of the Brenbal game, the file of girls and boys achieved 25 min 36 sec (56% of the time) of 45 min in zones 2-4. During intersexual distribution, the boys file was more active with the time of 25 min 51 s (57.47% of the time) in zones 2-4. The girls file achieved time of 25 min 18 s (56.23% of the time) in zones 2-4. Based on the research, the attractive Brenbal game can be recommended ideally suited for the development of children's aerobic fitness.

The study evaluates changes in motor performance in older school-age boys at a primary school in Lomnice nad Popelkou. The development of motor performance is monitored in boys aged 11-15 years from non-sports classes on the basis of an informal test battery of six motor tests (run for 60 m, run for 1000 m, curl-up, long jump, triple jump from a place, pull-ups) in a period of twenty-two years (school years 1996/1997 – 2018/2019). A total of 1,863 boys of all ages participated in motor testing. The results indicate an unchanged to declining level of motor performance over the recorded time period for most of the tests used in all age groups.