National Repository of Grey Literature 79 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Comparison of physical demands of fifteens and sevens rugby
Macháček, Jan ; Kaplan, Aleš (advisor) ; Hojka, Vladimír (referee)
Thema works: Comparison of physical demands of fifteens and sevens rugby Student: Jan Macháček Supervisor: Aleš Kaplan Aims: Outline the differences between rugby 7s and XVs based on a literature search. An analysis of the literature to find the terms that define the issue. Methodology: The method of literary research was used in the work, mainly from foreign sources. To meet the goal, concepts were chosen that helped to compile the idea of the structure of sports performance in rugby sevens and fifteens. Results: Over 250 electronic sources were acquired and researched as part of the fulfillment of the objectives of this work, based on the definitions of search keywords. All these sources were, with exceptions, in the English language. Of these, 60 articles covered men's sevens, 14 women's 7s, 68 men's and 7 women's XV, 32 youth rugby. Further 66 sources consisted of statistical yearbooks, periodization, talent identification articles, and coaching manuals. Three studies were identified, using a research method to compare aspects of different versions of rugby, but not in a systematic comprehensive form nor with the inclusion of both genders. Results of the research showed clear differences in per-minute running distances, higher frequency and length of sprints and high-intensity runs in the...
Warming-up and toning in foolball
Slicho, Tomáš ; Jebavý, Radim (advisor) ; Hojka, Vladimír (referee)
Title: Warm-up and toning in football Objectives: Comparison of the two types of warm-ups on repeated tests of explosive force of upper, lower limbs, acceleration and agility test. Methods: The research group consisted of 17 players in the category of U15, who passed four tests of two selected types of warm-ups, warm-up with toning and warm-up without toning. The measured tests consisted of a acceleration test to 30 meters, a shuttle run, a medicine ball throw and a long jump. A total of three training sessions were measured, with a weekly pause between tests, within a field training experiment. In the result part we used the method of analysis to analyze the results of all tests. The comparison was used to compare the results of all tests after two different types of warming-ups. The measured values were processed by using tables and graphs. Results: The values of the players in the tests after the toning warm-up were better than the results of the players after the warm-up without toning but on the limit of a low substantive signifikance. The biggest difference was in the acceleration test to 30 meters, the smallest difference was in the throw of the medicine ball. The first hypothesis was not confirmed but the second one was succesfully confirmed. Summary: Even when the results we measured did...
Influencing Shooting Speed in Football
Čáp, Ondřej ; Jebavý, Radim (advisor) ; Hojka, Vladimír (referee)
Title: Influencing the shooting speed in football Objectives: The aim of my thesis was to record, evaluate changes and verify the effectiveness of the implemented intervention during the reference period in the development of shooting speed together with a rebound ability in a long jump in a football team which is operating in the 5th highest football competition in Germany. Methods: Quantitative research was carried out in the form of motor testing of a football team from a selected foreign football league during the autumn part of the competition. Two tests were selected to determine the development of the explosive force of the lower limbs. It was a specific test of the explosive force of the lower limbs - a kick from a one-step rhythm and a test of the general explosive force of lower limbs - jump. It was a so-called cross over study. Team was divided in two groups, where group A was doing implemented intervention in a different part of reference period than group B. Results: Based on the analysis of descriptive statistics, there was an increase in the statistics in the long jump and a decrease in the statistics in both monitored groups, while group A has the observations with the greatest improvement, but in the group B can be seen mostly an improvement across the whole group. For the second...
Effect of warm-up on performance of football players
Křížová, Anna ; Jebavý, Radim (advisor) ; Hojka, Vladimír (referee)
Title: The Effects of a warm-up on the performance of football players Objectives: The comparison of influence of two types of warm-up before and after a physical activity on performance of U19 football players. Testing of subsequent post-warm-up performance focused on acceleration, explosive power and agility. Methods: In this empirical-theoretical thesis, a total of twenty-four U19 football players, divided in two experimental groups, is tested. The players within each group undertook either a complete dynamic warm-up or a shorter warm-up without the dynamic component. The performance was tested after the warm-up utilizing four tests - an acceleration run test on 30 m, a standing long jump, a foul throw and a shuttle run. The same tests were conducted again after an interlaid physical activity. The same procedure was repeated after a week when the two groups swapped the warm-up methods. Statistical analyses were employed to evaluate the results. Results: The hypothesis 1, assuming a positive effect of a complete dynamic warm-up on the performance before the physical activity was on one hand supported in the acceleration run on 30 m and the foul throw. On the other hand, no distinctive advantage of a complete dynamic warm-up was observed for the standing long jump and the shuttle run. Hypothesis 2...
Analysis of basketball players movement during the game with special focus on the center position
Shaya, Jimmy ; Hojka, Vladimír (advisor) ; Velenský, Michael (referee)
Title: An analysis of a basketball player's movement during the game with special focus on the centre position Objectives: This work aims to analyse and then quantify the movement load on the pivot position and compare the differences between the number of movements of ČEZ Basketball Nymburk and Real Madrid Baloncesto in their final game. Methods: The basis of this empirical study is a quantitative research that uses the method of analysis and comparison. To obtain the data, I have analysed the most frequent movements carried out by players in the game. I have collected the number of movements per each second for four positions. Observed group are centres. Movements were described theoretically, biomechanically, technically, or by using rules. After that I have used the comparison to determine the differences, which were implemented into charts and qualified in detail. Results: Movement analysis confirmed my expectations. In comparison of the pivot of an elite foreign team with the best Czech team, I have noticed significant percentage differences. Real Madrid Baloncesto players were higher in position-specific moves, such as post-up, rebounding, boxing-out, contacts, and screens. Unlike the players of ČEZ Basketball Nymburk, who achieved significantly higher values in less significant movements...
Strength training for Parkour and Freerunning Athletes
Chatzimarkakis, Christos ; Hojka, Vladimír (advisor) ; Chrudimský, Jan (referee)
Name: Strength Training for Parkour and Freerunning Athletes Goal: The main goal of this thesis was to draw attention to the concept of parkour/freerunning preparation system as well as training and create a comprehensive overview of the exercises a practitioner can use to improve performance and minimize the chances of injury. Methods: In this work, I used the secondary research method. The source of the information used in this project include data available on the internet and in public libraries. Data available on the internet include videos, public records, and reports by Universities. Data collected from public libraries include books regarding athletics, strength training, parkour, gymnastics, and coaching. Results: The result of this research was a detailed description of the parkour preparation system. Specifically, data showed that physiological, psychological and technical preparation are equally important for the development of a parkour practitioner. It was also realized that every athlete should go through a series of assessments in order for the coach to create an appropriate base conditioning or specificity phase training program. Lastly, the data showed that any athlete can develop his overall strength by performing ground-based movement and progressively working up to low and then...
Warming-up and toning in foolball
Slicho, Tomáš ; Jebavý, Radim (advisor) ; Hojka, Vladimír (referee)
Title: Warming-up and toning in football Objectives: The aim of this work is to compare two types of warming-up by footballers. I assume, that the players will have statistically more significant differences after the toning warming-up, than after the static variant. Methods: The research set consists of 17 elite players in the category of U15, who passed four tests by two selected types of warming-ups during a total of three trainings in a field training experiment. In the result part we used the method of analysis to analyze the results of all tests. We used the comparison when comparing the test results after two different types of warming-ups. The measured values were processed by using basic mathematical-statistical methods. Results: The results provide information on the efficiency and difference of toning and static warming-up based on the obtained values of the performed tests. The values of the players in the tests after the toning warming-up were better by 19.1% than after the static variant. The first hypothesis was thus confirmed. The other two were disproved. Summary: We found that toning warming-up has a statistically more significant effect on the results of the tests of football players than the static variant. Keywords: training, testing, analysis, comparison, field training experiment
The analysis of bobsledder's two-year training preparation cycle
Dvořák, Dominik ; Hojka, Vladimír (advisor) ; Červinka, Pavel (referee)
Title: The analysis of bobsledder's two-year training preparation cycle. Objectives: The aim of this bachelor thesis is the analysis and evaluation of the performance development during the two-year training cycle in bobsleigh sport. The thesis evaluates general and specific training indicators based on completed training of a bobsledder. It depicts the influence of specific training indicators on performance in both 2-men and 4-men bobsleigh starts. Methods: The thesis analyses the training diary which covers two years of preparation, including several general and specific training indicators which are selected and further evaluated. The general training indicators include the amount of training days and individual training units, the total workout time and the time spent on regeneration. Specific training indicators include factors primarily affecting bobsleigh starts. Individual specific training indicators are evaluated on the basis of their level of intensity and their overall classification into the corresponding period of the annual training cycle. Results: The reason of the performance enhancement of the bobsledder was mainly the higher amount of training completed among specific training indicators. The main training goal was the increase of the strength. This increase before the 2017/18...
The relationship of explosive strength and CODS performance
Hönig, Karel ; Hojka, Vladimír (advisor) ; Kokštejn, Jakub (referee)
Title: The relationship of explosive strength and CODS performance Objectives: The main aim of this work is to find out the degrese of relatedness indicators between explosively force abilities and performance in individual Agility tests for U16 and U17 footballers Methods: Testing and measurement was performed on a sample of 32 players aged 15-16 from the Bohemians Prague football team. To determine the player's explosive-force abilities, the Kistler board was used in the BEZ laboratory. Agility testing was based on test batteries for this ability (Arrowhead L and P, Illionois, 505 L and R, K-test and Hexagon). The data measurements was processed by using IBM SPSS statistics 22. Results: I have found that the impact of explosive strength abilities was most evident in Arrowhead and Illinois CODS tests at R = 0,4 - 0,7 and p<0,05. On the contrary, Hexagon test proved to be independent of explosive-strength abilities. In addition, it was found a small correlation value between 505 test and other CODS tests. Keywords: fitness ability, Agility, CODS, speed, strength, football
The influence of isokinetic force on CODS performance of football players
Žáček, Adam ; Hojka, Vladimír (advisor) ; Červinka, Pavel (referee)
Title: The influence of level of isokinetic force on CODS performance of football players. Objectives: The main goal is comparison of influence between isokinetic power of lower limbs and performance in CODS tests. Method: Measured group consisted of players between 15-19 years old from teams Motorlet Praha and Bohemians Praha. Players of one age category passed the tests batery in one day, that consist of agility (Arrowhead L and R, Illinois, K-test, Hexagon test, 505 L and R), Cybex was used to find informations about isokinetic force. Results: The biggest correlation between isokinetic (IK) force and performance in CODS tests was measured between IK tests and CODS test Illinois -0,443. Other tests had from very weak to average correlation. The worst correlation was found between IK tests and Hexagon test - 0,007, which showed insignificant correlation between these tests. Concentric muscle contraction achieved higher correlation than eccentric muscle contraction and with changing degree speed was correlation in concentric muscle contraction lower, while eccentric muscle contraction correlation was slightly higher in faster degree speed. Keywords: Isokinetic force, agility, CODS, football, training

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