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The impact of players’ motor skills on match performance in top German Bundesliga teams

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Konefal M., Chmura P., Kowalczuk E., Andrzejewski M., Chmura J.
Trends in Sport Sciences
|
2015
|
tom 22
|
nr 4
Introduction. Soccer is a highly dynamic and acyclical game and a soccer player’s performance during a match involves a high variability of actions since. Aim of Study. The aim of the present study was to determine the effects of endurance and speed skills of players from two top German Bundesliga teams on their teams’ final standings in the league table. Material and Methods. The study covered all 34 matches of the 2013/2014 season, and it consisted of 480 observations of 41 players. It was carried out using the Impire AG motion analysis system on the basis of official Deutscher Fußball-Bund (DFB) match reports. The players’ endurance skills were estimated on the basis of total distance covered during match play and distances in different intensity ranges. The players’ speed skills were assessed on the basis of the total number of performed sprints, sprinting distance, and maximal and mean running speed. Results. The results showed that the team which was ranked lower in the final league table scored higher in all players’ motor parameters than the team which was ranked higher. Conclusions. Pre-season motor preparation of top German Bundesliga teams is not the decisive determinant of the teams’ final standings in the league, and even the highest level of players’ skills does not guarantee reaching the championship position.
2

Speed skills of players selected for Lower Silesian Regional Teams

100%
Swierzko K., Rokita A., Klimczak K.
Trends in Sport Sciences
|
2016
|
tom 23
|
nr 1
Introduction. Team sports require comprehensive motor preparation of players. In addition to strength and endurance skills, increasing attention is being given to the development of players’ speed skills. Aim of Study. The aim of the study was to evaluate reaction time and 30-metre, straight line sprint time in players selected for the Lower Silesian Regional Teams in Poland in 2013 and 2014. Material and Methods. The study involved 369 players aged 13–15 years (187 girls and 182 boys), members of football, handball, volleyball and basketball Regional Teams of Lower Silesia. Out of this group, 51 players participated in the study in 2013, and then repeated it in 2014. The study used Smart Jump and Smart Speed Systems to measure players’ reaction and sprint times, which were measured at 5, 10, 15, 20, 25 and 30-metre intervals. Results. Mean reaction time to light stimuli observed in boys in 2013 and 2014 was 0.509 ± 0.141 and 0.467 ± 0.264 seconds, respectively. In girls, the mean reaction time was 0.553 ± 0.122 and 0.566 ± 0.0271 seconds in 2013 and 2014, respectively. Mean sprint time in 2013 for boys who were not selected for the Regional Teams the following year was 5.338 ± 0.285 seconds, while those who were selected reached 5.416 ± 0.321 seconds. Girls who did not qualify for the Regional Teams in 2014 achieved the time of 5.764 ± 0.305 seconds. The female players who repeated the study reached the mean time of 5.805 ± 0.28 seconds. Boys who joined the Regional Teams in 2014 had a 30-metre sprint time of 5.533 ± 0.359 s. Boys who were repeating the study achieved the time of 5.322 ± 0.295 s. Girls who were selected for the Regional Teams in 2014 reached 5.796 ± 0.348 s, while girls who were repeating the study – 5.839 ± 0.342 s. Conclusions. The players’ reaction times may suggest that this ability was not a criterion for selecting male and female players for the Regional Teams of Lower Silesia. Male handball players were shown to posses the greatest speed potential.
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