|
A comparison of chandge of direction speed and reactive agility in football
Procházka, Vladimír ; Hojka, Vladimír (advisor) ; Kaplan, Aleš (referee)
Title: A comparison of Change of direction speed and reactive agility in football Objectives: The aim of the thesis is to determine the level of skill of football players in agility and change of direction speed. Also to find out whether these two abilities correlate with each other, if the best players in agility also achieve the best results in tests focused mainly on change of direction speed and which components distinguish these two abilities from each other. Method: By using metaanalysis we first define the parameters of individual performance in football, its requirements and needs at the present time, the importance of change of direction speed and agility for football performance. At the same time, we will determine the differences between the environment and preparation of football players in the Czech republic and abroad. I would like to describe here the components and sub-components of performance in agility and finally introduce the differences between tests focused on change of direction speed and reactive agility. Key words: Agility, football, change of direction speed, reactive agility
|
|
Dynamic load during reactive strength tasks
Kováč, Dan ; Hojka, Vladimír (advisor) ; Vindušková, Jitka (referee)
Title: Dynamic load during reactive strength tasks Objectives: Objectives were to explore and measure biomechanic parameters of athletes performing different reactive strength tasks using force plates. Methods: 8 male athletes (22,4 ± 1,2 years; 76,3 ± 4,3 kg) took part in experiment. Each of them performed 8 different reactive strength tasks (alternate and single leg bounds, pogo jumps on place, low hurdle jumps, high hurdle jumps 76 cm and 91 cm and long jump take off from 8 and 12 steps approach). Dynamics of tasks was measured using Kistler 9281 EA with sample rate of 1000 Hz. Main observed parameters were maximum vertical force, time to peak force, contact time and impulse. Data were processed in MATLAB R2022a (The MathWorks, Inc. Natick, Massachusetts, USA) and Microsoft Excel 2019. Results: Differences in dynamics of reactive tasks were observed among single leg and double leg exercises. Double leg exercises had much longer time to peak of vertical force than single leg exercises. Biggest vertical forces were observed during single leg bounds, where overload reached seven times body weight. On the other hand lowest peak of vertical force was measured during long jump takeoff from eight steps approach. Maximal forces got higher and contact time shorter with increased approach speed during...
|
|
Difference of biomechanical parameters in individual categories in javelin throw
Krejnusová, Tereza ; Feher, Jan (advisor) ; Hojka, Vladimír (referee)
Title: Difference of biomechanical parameters in individual categories in javelin throw Objectives: The aim of this work is to determine whether the biomechanical parameters in javelin throw are different between age categories and gender categories. At the same time, this work deals with how much influence the individual parameters affect the throw distance and whether these ratios are the same or different for each category. Methods: During the research, kinematic analysis and video analysis using the Kinovea program were used. Statistical methods such as ANOVA, Tukey's post hoc analysis and hierarchical regression analysis were also used. Results: It was found that of the measured parameters, the value of 8 parameters differs between at least two categories. Only 2 parameters gave an insignificant result, so there are no different values between the categories. Furthermore, it was found that for 3 categories, the net distance has the greatest effect on the rate of estimation. The other selected parameters are only partially identical and there are some differences between the categories.. Keywords: javelin throw, biomechanical parameters, difference, category, ANOVA, hierarchical analysis
|
|
The Effects of neck cooling during intermitent exercise
Čuda, Radek ; Hojka, Vladimír (advisor) ; Baláš, Jiří (referee)
Title: The Effects of neck cooling during intermitent exercise Objectives: The aim of the study was to determine effects of neck-cooling during intermitent exercise on heart rate and heart rate recovery changes, intermitent sprint performance and rating of perceived exertion. Methods: The crossover study design and MBD analysis was used. 19 healthy subjects absolved test consisted of: 4 x 2 min. repeated shuttle run test (HIMS), 1 minute recovery interval for cold pack application on the neck, repeated sprints 10 x 20 m and 2 minute recovery interval for cold pack application on the neck. Results: Neck cooling during intermitent exercise can lower heart rate and improve faster heart rate recovery. Impact on intermitent sprint performance is unclear because of missed data. The rating of perceived exertion is on the same level after neck-cooling. Keywords: neck-cooling, intermitent exercise, HIMS, HRR, MBD
|
|
An analysis of a basketball player's movement during the game
Shaya, Jimmy ; Hojka, Vladimír (advisor) ; Velenský, Michael (referee)
6 Abstract Title: An analysis of a basketball player's movement during the game Objectives: The aim of this work is to demonstrate that observation groups in the basketball game use a different number of movements and should therefore train separately. 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. We have collected the number of movements per each second for each group. Observed group are: point guard, shooting guard and centers. 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: A graphical representation of the number of movements confirmed the goal of our work. The biggest differences were found in specific movements, such as screens, acceleration, dribbling and crossover dribble. It turned out that the primary movements, such as standing or walking occupy over 50% of the match for each group. Neither group achieved the same result in any category. It is therefore necessary to take into account these facts and plan training preparation in order to reflects the...
|
|
Conditions for sports activities in selected organisations for disabled individuals in the town Teplice
Shaymardanova, Karina ; Kaplan, Aleš (advisor) ; Hojka, Vladimír (referee)
3 ABSTRACT Name: Conditions for sports activities in selected organisations for disabled individuals in the town of Teplice. Aim of the work: Monitoring sports activities as a socialisation factor for integration and socialisation of individuals with disabilities caused by poliomyelitis in the selected town of Teplice. Another objective was to describe conditions of sports activities and to determine opinions of handicapped individuals on attendance at sports groups in selected centres as well as determination of attitudes of handicapped individuals, particularly post-polio individuals, to selected sports activities. Method: The work is a descriptive case study, in which direct observation, questionnaire review, and controlled interview methods have been used. Results: In this diploma thesis I present the determined current conditions of sports activities offered and provided by selected organisations in Teplice. All the observations described in this work present findings related to opinions of handicapped individuals on the attendance at sports groups and clubs. Description of the conditions of sports activities and professional opinions of specialists about these questions provided proposals for possible solutions and improvement of the existing state. These proposals particularly include a more...
|
|
Pole vaulter training
Pěkný, Marek ; Vindušková, Jitka (advisor) ; Hojka, Vladimír (referee)
: Title: Pole vaulter training Objectives: The main aim of this bachelor thesis is to appraise performance progress of pole vaulter and to compare different methods of different coaches. Methods: Data was obtained from training diaries of the pole vaulter. Subsequently, this data was arranged into graphs and charts and then was assessed by logic consideration. The main method of this bachelor thesis is method of quantitative analysis. Results: According to analysis of training data I found out that the performance of the pole vaulter was mainly influenced by the lack of speed and speed persistence training. Key words: Athletics, pole vault, training, analysis.
|
|
Attitudes and Motivation of Pupils in Relation to Athletics
Ešpandr, Martin ; Kaplan, Aleš (advisor) ; Hojka, Vladimír (referee)
Thesis title: Attitudes and Motivation of Pupils in Relation to Athletics Objective: find out the attitudes and motivation of pupils in relation to athletics in pupils'categories of selected athletic clubs in Prague Methodology: questionnaires distributed in 15 youth athletic clubs in Prague, Central Bohemian Region, Plzeň, Cheb and Pardubice. Intentionally no sport schools have been included. 352 correctly filled-in questionnaires have been collected. Questionnaires have been classified according to different age groups: athletic prep, junior and senior pupils. The objective of the given research was to find out the attitudes and motivation of pupils in relation to athletics or to its disciplines, respectively. A part of the questionnaire also focused on discovering pupils' knowledge of the most famous athletic personalities today and in the past, both in the domestic and international context. Conclusion: the thesis is divided into a theoretical and a practical part. The former one deals with the analysis of the key concepts and the context of the given topic. It is based on accessible specialized literature focusing on the topic both empirically and theoretically. Recent theme articles from international internet portals have also been used. The latter part is practical, based on the data obtained from...
|
|
Effect of warm-up method on the agility performance of rugby players
Maštera, Jan ; Hojka, Vladimír (advisor) ; Jebavý, Radim (referee)
Title: Effect of the warm-up method on the agility performance of rugby players Objectives: The thesis evaluated the effect of the warm-up type (static, dynamic, balance) on the agility performance of female rugby players and assessed which of these methods is best to apply prior to the activity. Methods: The tested sample was composed of ten players of the Czech Republic women's national rugby union team aged between 22 and 34. Each player underwent three measurements. Prior to the measurement, a different type of warm-up (static, dynamic, using balance aids) was chosen, followed by agility measurement using Illinois agility test and 505 agility tests. Results: In the measurement, hypotheses (hypothesis 1: after applying dynamic warm-up, players will achieve better agility performance than after static warm-up; hypothesis 2: after applying warm-up using balance aids, players will achieve better agility performance than static and dynamic warm-up). Hypothesis 1 was evaluated as true and hypothesis 2 was evaluated as partially true. Keywords: Rugby, agility, static warm-up, dynamic warm-up, warm-up using balance aids
|
|
Modern means of development of maximum speed
Hoffmann, František ; Kaplan, Aleš (advisor) ; Hojka, Vladimír (referee)
A name of a diploma work: Modem means ofdevelopment ofmaximum speed A student: František Hoffmann A supervisor of a diploma work: PhDr. Aleš Kaplan, Ph.D. Goals of a diploma work: Observing of changes of chosen quantities depending on each other on supramaximal sprint (a frequency and a length of a step) in a comparison to zero-level sprint of maximum speed (a frequency and a length of a step). A Method of a work: Experimental reaching of over-maximum speed by means of The Speedy System and evaluating of reached facts by a tíme analysis in the service workplace CASRI, keeping balance of the experiment (inner validity) and final evaluating through: a middle value, authoritative divergence, setting of a regress equation ofmaximum and over-maximum sprint and a comparison ofrelation ofzero-levels and dependent quantities ofsingle sprints, an equilibration ofthe ABBA experiment. Results: In the experiment was noticed a change of zero level in the comparison to independent quantities about 7,5 % in increasing of maximum speed up to over-maximum speed of all sprints. As regards the comparison of zero level to dependent quantities there was noticed increasing or decreasing of the step frequency about 1,6 % in dependence on shortening or extension of a step length, witch proportion on supramaximal speed 6%....
|