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1

The influence of individualizing physical load on speed, creatine kinase activity and lactate dehydrogenase in young football players in six-month makrocycle

100%
Andrzejewski M., Chmura J.
Acta Biochimica Polonica
|
2006
|
tom 53
|
nr Supplement 1
2

Antioxidative activity of catecholamines and model neuromelanins as assayed by electrochemiluminescence

100%
Chmura J., Slawinski J.
Acta Biologica Cracoviensia. Series Zoologia
|
2000
|
tom 42
3

Effect of hyperglycaemia and hypoglycaemia on lipid-carbohydrate metabolism during physical exercise

81%
Gorski L., Chmura J., Cholewa M., Markiewicz K.
Acta Physiologica Polonica
|
1979
|
tom 30
|
nr 1
4

Effect of hyperglycaemia and hypoglycaemia on left ventricular systolic performance during physical exercise

81%
Chmura J., Cholewa M., Jaszczuk J., Markiewicz K.
Acta Physiologica Polonica
|
1979
|
tom 30
|
nr 1
5

Transport materiału w małych zlewniach karpackich jako wskaźnik degradacji środowiska przyrodniczego

81%
Lach J., Chmura J., Rettinger W.
Problemy Zagospodarowania Ziem Górskich
|
1990
|
tom 32
6

Effect of moderate hyperglycaemia on left-ventricular systolic time intervals during submaximal exercise of steady workload in healthy subjects

81%
Chmura J., Cholewa M., Markiewicz K.
Acta Physiologica Polonica
|
1980
|
tom 31
|
nr 4
7

Plasma biochemical changes and acid-base equilibrium changes in capillary blood during frequently repeated submaximal physical exercise in untrained subject

81%
Markiewicz K., Cholewa M., Jazdzewski B., Chmura J.
Acta Physiologica Polonica
|
1980
|
tom 31
|
nr 6
8

Relationships between motor abilities and volleyball performance skills in 15-year-old talent-identified volleyball players

81%
Mroczek D., Superlak E., Kawczynski A., Chmura J.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2017
|
tom 09
|
nr 1
The aim of this study is to determine synergistic motor outcomes understood as sets of mutually dependent players’ motor abilities affecting the efficacy of performance skills of young volleyball players. The study was carried out during a national volleyball tournament for 150 boys aged 14-15 years. The matches were recorded with two cameras placed 10 m behind the end line, 1.6 m above the floor. The following parameters were assessed: attack efficacy, block efficacy, serve efficacy. The first dependent variables were players' actions that most significantly affected the set outcome, i.e. serves, blocks and attacks. The greatest differences were found among players' serve results, where – with the exception of ineffective serves – the index of variability ranged from v = 67.14 (counter-effective serve) to v = 80.23 (effective serve). The study showed that serving and attacking effectiveness is directly determined by standing jumping ability, while blocking efficacy is affected by the height of the running vertical jump.
9

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

81%
Konefal M., Chmura P., Andrzejewski M., Chmura J.
Trends in Sport Sciences
|
2014
|
tom 21
|
nr 4
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.
10

Kwasne niszczace deszcze

80%
Chmura J.
Ekoprofit
|
1998
|
nr 10
61-65
11

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

71%
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.
12
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Analysis of match performance of full-backs from selected European soccer leagues

71%
Konefal M., Chmura P., Andrzejewski M., Pukszta D., Chmura J.
Central European Journal of Sport Sciences and Medicine
|
2015
|
tom 11
|
nr 3
13

Technikum Lesne w Brynku obchodzi swoje 50-lecie

70%
Drozdowski W., Cyankiewicz M., Chmura J.
Trybuna Leśnika
|
1995
|
nr 05
8-9
14

Współzależność progu amoniakowego i progu anaerobowego

61%
Pilis W., Zarzeczny R., Manowska B., Chmura J., Rak L., Rodziewicz-Gruhn J., Langfort J.
Prace Naukowe Wyższej Szkoły Pedagogicznej w Częstochowie. Kultura Fizyczna
|
1997
|
tom 01
15

Effect of 400 ml blood loss on adaptation of certain functions of the organism to exercise

61%
Markiewicz K., Cholewa M., Gorski L., Jaszczuk J., Chmura J., Bartniczak Z.
Acta Physiologica Polonica
|
1981
|
tom 32
|
nr 6
16

Zmiany stężenia jonów sodowych i potasowych we krwi wywołane wysiłkiem fizycznym o stopniowo wzrastającej intensywności u mężczyzn na tle progu mleczanowego i wentylacyjnego

61%
Chmura J., Manowska B., Smol E., Zajac A., Pilis W., Pilis T.
Prace Naukowe Wyższej Szkoły Pedagogicznej w Częstochowie. Kultura Fizyczna
|
1997
|
tom 01
17

Próg anaerobowy a stężenia jonów wapniowych i magnezowych w osoczu krwi u mężczyzn podczas wysiłku fizycznego o stopniowo narastającej intensywności

61%
Zarzeczna D., Pokora I., Chmura J., Pilis W., Zarzeczny R., Rak L., Michalski C.
Prace Naukowe Wyższej Szkoły Pedagogicznej w Częstochowie. Kultura Fizyczna
|
1997
|
tom 01
18

Endurance capacity and selected technical-tactical skills of soccer players participating in the group stage of the 2014 FIFA World Cup

61%
Chmura P., Golinski D., Andrzejewski M., Mroczek D., Kawczynski A., Rokita A., Chmura J.
Trends in Sport Sciences
|
2014
|
tom 21
|
nr 3
The study examines the endurance capacity and selected technical-tactical skills of soccer players participating in the 2014 World Cup in Brazil. The results indicate the significant impact of players’ motor preparation level on the execution of technical-tactical actions in top-class soccer tournaments. The covered distance by players during a match is one of the most important indices used for assessment of players’ endurance capacity. The analysis revealed that the Spain and Italy national teams which attained very high passing efficiency and total number of passes failed to advance to the knockout stage of the tournament. The analysis of the structure of match performance, especially by elite teams, is necessary for rational programming of endurance training in professional soccer. The knowledge of endurance loads at top-level soccer tournament permits the optimalization of modern soccer training.
19
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Distances covered above and below the anaerobic threshold by professional football players in different competitive conditions

61%
Chmura P., Konefal M., Kowalczuk E., Andrzejewski M., Rokita A., Chmura J.
Central European Journal of Sport Sciences and Medicine
|
2015
|
tom 10
|
nr 2
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.
20

Grota Pulawska

60%
Chmura J., Matysik A.
Aura
|
1994
|
nr 03
14-16
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