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Analysis of motor performance of professional soccer players in different environmental conditions

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Konefal M. , Chmura P. , Andrzejewski M. , Chmura J.

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nr 4

EN

Introduction. Air temperature and humidity affect the motor activity of soccer players during matches. Analysis of soccer players’ motor activity in extreme environmental conditions enables optimal players’ preparation. Aim of Study. The study aims to assess changes in motor performance of soccer players in different environmental conditions. Material and Methods. The participants were soccer players taking part in the 2014 World Cup matches in Brazil. The authors used the Castrol Performance Index motion analysis system for data recording. Results. Higher air temperature reduces the performance of exercise with medium (p ≤ 0.05) and high intensity (p ≤ 0.01); while higher humidity has a significant positive impact on the distance covered by players with medium intensity (p ≤ 0.05). The total number of performed sprints becomes significantly lower in higher air temperature and humidity (p ≤ 0,05). Conclusions. Soccer training should emphasize highintensity exercise as well as short-lasting and explosive exercise since the environmental conditions have a greater impact on players’ speed skills than endurance skills.

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Wykorzystanie czasu wolnego przez młodzież z różnych typów szkół

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Czajka K. , Slawinska T. , Konefal M. , Puciato D.

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tom 10

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nr 1

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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.

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tom 22

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nr 4

EN

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.

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Distances covered above and below the anaerobic threshold by professional football players in different competitive conditions

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Chmura P. , Konefal M. , Kowalczuk E. , Andrzejewski M. , Rokita A. , Chmura J.

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nr 2

EN

In modern endurance training information about an athlete’s performance below and above the anaerobic threshold is crucial. The aim of the present study was a comparative analysis of the total distance covered by football players in two rounds of the 2013/1014 playing season. Furthermore, the study also assessed the performance of elite Bundesliga players during competitive matches, above and below the running speed of 4 m·s–1, corresponding to the level of anaerobic threshold (AT). The players’ mean body height was 183.00 ±6.44 cm, body mass 78.19 ±7.42 kg, and mean age was 27.99 ±3.47 years. The analysis was carried using the Impire AG motion analysis system on the basis of official match reports from the Deutscher Fußball-Bund (DFB). The study revealed that the total distance covered by the players in match-play was significantly shorter in the second round of the playing season. The distance covered by the players below the AT is significantly shorter in the spring round than in the autumn round, while the distance covered above the AT shows a reverse, although non-significant tendency. In the spring round the volume of players’ work performed above the anaerobic threshold is greater than the volume of exercise performed below the AT.

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Distance covered below and above the anaerobic threshold by elite German goalkeepers

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Parus P. , Chmura P. , Konefal M. , Andrzejewski M. , Kowalczuk E. , Chmura D.

Central European Journal of Sport Sciences and Medicine

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2017

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tom 17

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nr 1