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Characteristics of Physical Loads of Young Footballers During a Championship Match

100%

Andrzejewski M., Pluta B., Posiadała D.

Journal of Human Kinetics

2009

vol. 21

83-88

The aim of the work was to characterize physical loads present during a champion match among young footballers. The research was conducted on a group of 10 football players at the age of 13.5 ± 0.4, with training experience of 4 years. The average body height of the players was 162.32 ± 7.73 cm and the average body mass was 51.12 ± 7.72 kg. In effort to analyze the selected motor performances of the players during the match, a kinematic method by Erdmann (2000) was applied. The analysis of motor activeness was conducted during the first and the second half of the game. The results are shown as arithmetic means and standard deviation. To compare the values, Student's t-test for the linked samples was applied. The significance level was p ≤ 0.05. The results of the study show that the total distance covered by the young football players averaged 4,252 metres. The longest, statistically relevant mean distance (p ≤ 0.05) was covered by the midfielders (4, 486 m). The analysis of the mean distance covered by the players with an established speed below the anaerobic threshold was 3,596 ± 207 metres, which makes up 84.57% of the total distance covered during the game. A thorough analysis of the number of sprints revealed that a player performs 18 of them on average throughout the game. The highest maximum running speed (7.0 m/s) was achieved by the midfielders. The defenders proved to be slowest (6.5 m/s), while the forwards had the second fastest average maximum running speed (6.8 m/s).

Aspects of Athletic Training Management of the Fittest Lithuanian Skiers-Racers

75%

Čepulėnas A.

Baltic Journal of Health and Physical Activity

2009

vol. 1

issue 1

52-61

Background: The aim of the research was to analyse the system of athletic training management of the fittest Lithuanian skiers - members of the Olympic national team and to establish the peculiarities of the changes in the skiers' sports performance in the perennial training process.Material/Methods: The complex studies of Lithuanian skiers were carried out three times during an annual training cycle. The study analyses the indices of training loads, physical working capacity and the functional capacity of the organisms of Lithuanian Olympic national team skiers I. T (female), A. N (male) and M. S. (male). We present methods of control of functional powers and adaptation to physical loads of skiers' organisms, analyse indices of adaptation of skiers' organisms to physical loads and physical efficiency in the zones of different work intensity.Results: Significant information about the adaptation of skiers' organisms during the two-year training cycle is gained by estimating the skiers' metabolism, the threshold limits of critical intensity and anaerobic effort.Conclusions: Indices of oxygen consumption at the limit of anaerobic threshold and after reaching the limit of critical intensity often change during the annual cycle, and thus, we can judge the sports preparedness of athletes according to the parameters of those indices.

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1 Baltic Journal of Health and Physical Activity

1 Journal of Human Kinetics

2 2009

1 Andrzejewski M.

1 Pluta B.

1 Posiadała D.

1 Čepulėnas A.

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Characteristics of Physical Loads of Young Footballers During a Championship Match

Aspects of Athletic Training Management of the Fittest Lithuanian Skiers-Racers