Jan Kresta

Effectiveness of the Involvement Of Selected Muscles During the Pre-Jump and Wind-Up Phase During the Execution of a Spike In U16 – U18 Female Beach Volleyball Players

Tomáš Polívka, Martin Škopek, Lucie Lebrušková, Ondřej Sobotka et autres

Background: „Laterality in beach volleyball is mainly manifested in the attacking activities of an individual (serving, spiking). Functional asymmetry affects the player’s movement expression in all movement situations, and laterality is also important for the specialization of individual players.Objective: The study aims …

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Assessment of the Hamstring Load of Female Beach Volleyball Players of a Wider Representative Selection of the U16 Category During the Block Jump Using Surface Electromyography

Tomáš Polívka, Martin Škopek, Jan Kresta, Lucie Lebrušková

Blocking in beach volleyball appears to be an axisymmetric movement - in contrast to an attacking strike or serve, which stress the musculoskeletal system unilaterally. When jumping on a block, the player squats and jumps from this position, so we can say …

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Error Rate in the Decisions of Elite Futsal Referees in the Context of Their Position on the Pitch

Jan Kresta, Murat Çolak, Jan Carboch, Martin Škopek et autres

One of the primary requirements for a futsal referee is the minimum of incorrect decisions in a match. An important starting point for the possibility of the correct decision of the referee is his position on the court when deciding. The aim …

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The effectiveness of rowing boat setting using the Empower Oarlock system

Martin Škopek, Jan Kresta, Josef Heidler, Jakub Tkáč

Tactics in tennis doubles: analysis of the formations used by the serving and receiving teams

Jan Carboch, M Cabela, Jan Kresta

There are several tactical variants that can be used by the serving and receiving teams before the serve is struck in tennis doubles. The goal is to analyse the frequency and efficiency of the tactical variants of the serving and receiving teams …

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Adjustment of the correct sitting position on bicycle of recreational cyclists : inspiration for physical education at school

Jan Kresta, Martin Škopek, Pavel Ponížil

An analysis of futsal referees' performance in matches

Jan Kresta

Aktuální stav poznání o pohybové aktivitě rozhodčích futsalu

Jan Kresta

This review study is aimed to the empirical results maps current knowledge about physical activity futsal referees in the match. Results: referee movement is intermittent character; distance, which exceeds the referee in the match locomotion is in the range of 4.5 to …

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NOTATIONAL ANALYSIS OF FUTSAL REFEREE´S PERFORMANCE IN THE MATCH

Jan Kresta

Deskripce výkonu rozhodciho by měla být jednim ze stěžejnich aspektů při systemove připravě rozhodcich futsalu. Výzkumným problemem teto prace je, zda se měni chybovost rozhodciho futsalu při posuzovani hernich situaci v souvislosti s jeho postavenim. Hlavnim cilem prace je přispět k řeseni …

INDEBTEDNESS OF MUNICIPALITIES AND ITS INFLUENCE ON FINANCING OF SPORT: CASE STUDY OF SLOVAKIA

Jan Kresta, Marián Gál

Analysis of errors futsal referees in relation to their position and physical activity on the pitch

Jan Kresta

Title: Analysis of errors futsal referees in relation to their position and physical activity on the pitch Problem: Description of the performance of the referee should be one of the key aspects of the futsal referees system preparation. The current situation, according …

Pohyb je život 2009 : sborník konference pořádané dne 11. února 2009.

Jan Kresta, Dominika Pyšná