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Background: The objective of the research was to work out the set of test tasks assessing special physical fitness of 17-year-old soccer players. Material/Methods: At first, on the basis of the analysis of the said issue in literature and the authors’ own coaching experience, 13 test tasks were selected. Next, reliability and accuracy of the chosen test tasks were examined on the group of 16 athletes from the Centre of Sports training for youth in Gdansk. The reliability was assessed by the test-re-test method and the accuracy according to a criterion of internal accuracy tests. Except for one task, all efficiency tests met scientific requirements for motor tests. Finally, with the use of statistical analysis (linear regression equation, Hellwig’s algorithm of the optimal choice of explaining variables), four tests implementing most information for the assessment of game-play were chosen. Results: A four-task set of tests assessing selected components of physical fitness reflected 86.7% of the game-play of young competitors. Conclusions: Results of special physical fitness tests should be treated as important information about young athletes’ special physical efficiency, closely interdependent with the effectiveness of their activity in a classified game-play, but only when the tests themselves have previously been scientifically proved.
Background: The aim of this study was to determine physical activity profiles of the main referee and the assistant referee during official championship matches. Material/Methods: Motor activity of 10 referees and 10 assistant referees was studied during 10 matches of the championship rank in the period from April to November 2016. Using a POLAR M400 heart rate monitor with a built-in GPS sensor, the total distance covered during refereeing, the mean and the maximum speed, and the intensity of the refereeing effort were analyzed. Results: It was found that the main referee covered the mean distance of 7.75 km, while the assistant referee 4.40 km. The main referee’s mean heart rate was higher by 25 bt/min than that of the assistant, and the mean maximum heart rates were 184.9 bt/min and 166.6 bt/min, respectively. The assistant referee had the mean maximum running speed of 19.97 km/h. In general, the mean running speed of the main referee was higher than the assistant referee’s mean speed. Conclusions: Differences in physical activity between the main referee and the assistant referee indicate
Background: ‪The aim of this study is to examine and compare the distance covered with high-intensity running and to determine differences in maximum velocities achieved in a match by 15–19-year-old elite Polish soccer players depending on their age and playing positions. Material and methods: ‪The current study monitored and analyzed 528 matches of youth soccer players of six tactical positions (12 goalkeepers, 24 fullbacks, 24 central backs, 24 wide midfielders, 36 central midfielders and 12 forwards) from four age categories (U-15, U-16, U-17 and U-19) from three top Polish soccer academies, using a MinimaxX device. Results: ‪It was found that in every age category, central midfielders covered the longest total distance, while wide midfielders covered the greatest distance with high-intensity running. Maximum velocities of players of U-17 and U-19 were significantly higher than players of U-15 and U-16. The highest maximum velocities were achieved by the wide midfielders and forwards of U-19 players. Conclusions: ‪The selection of players for certain positions in the game must take into account the players’ ability to perform high intensity running, sprints and ability to repeat very high intensity running.
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