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The influence of Red Bull energy drink on speed, power and rebound performance of female volleyball players at the performance level
HARRISOVÁ, Helena Estella
The aim of the bachelor's thesis was to find out the influence of Red Bull energy drink on the speed, strength and rebound performance of female volleyball players at the performance level. Fifteen first-league volleyball players of VK Madeta České Budějovice club from the women's category were tested. The performance of female volleyball players was assessed using a bicycle ergometer, rebound board and hand dynamometer in the middle of the 2023/2024 season at the laboratory of load diagnostics at the department of physical education, University of South Bohemia. Each player underwent testing twice with a one-week break. Participants were given a Red Bull energy drink and a placebo in random order. Drinks were blinded. Anaerobic parameters were examined together with the blood lactate concentration using Wingate test, the average height recorded by the Bosc test and the maximum hand grip strength using the hand dynamometer. We did not confirm any significant effect of Red Bull energy drink on the observed performance. The t-test and Cohen's d were used to assess the statistical and substantive significance of the results. No significant effect of Red Bull energy drink on the observed parameters was found, with the exception of the maximum strength of the right-hand grip (d=0,29), the average height of the jump with a bounce from the left leg (d=0,22), maximum heart rate (d=0,29), maximum relative power (d=0,31), fatigue index (d=0,4) and lactate (d=0,2), for which substantive significant influence was recorded with only a small effect. Based on the evidence obtained from the measurements, it was proved that the Red Bull energy drink in a short period of time (20 min) had no effect on the performance of athletes.
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Comparative analysis of the results of Wingate tests of anaerobic endurance at players of HC Motor Ceske Budejovice in the last five years
VLČKOVÁ, Pavla
The aim of the graduation thesis is carrying out the Wingate test in the male "A" team HC Motor České Budějovice in the last five years and the subsequent comparative analysis of the results. A total of 239 players of the HC Motor České Budějovice team took part in the research, over a period of five seasons. We processed the measured values of the Wingate test into tables and graphs and the compared them between each other. In 2015, 2016 and 2018 measurements were performed before and after summer preparation. In 2015 and 2018, the results after summer preparation were higher than before the preparation. The measured value of maximum power [Watt/kg] in 2015 was 16,01 Watt/kg, in 2016 this value decreased to 11,90 Watt/kg and in 2017 it increased to 14,29 Watt/kg. In 2018 the value was 15,51 Watt/kg, 2019 14,86 Watt/kg and in 2020 it was 14,85 Watt/kg. The results of the Wingate test depend on the person of the trainer. This is evident from the results, when in 2016 all values decreased. This year, the trainings were led by a different trainer than in other years. In the last three years were relatively stable results. One trainer took care of the summer preparation.
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Relation between chosen indicators of Wingate test and performance of racers in category K1 junior women slalom
Hapák, Michal ; Bílý, Milan (advisor) ; Šteffl, Michal (referee)
Topic: Relation between chosen indicators of Wingate test and performance of racers in category K1 junior women slalom. Aim: Determination of values of 30-s Wingate test function indicators in women water slalom (junior cathegory). Assessment of the relation between selected indicators and the performance in the nomination races, comparison of the indicators with the overall rankings in the nomination races. Methods: 30-s all out Wingate test on arm lever ergometer in UK FTVS laboratory. Usage of multidimensional statistical methods for correlation of Wingate test's chosen indicators with results of junior nomination races. Comparison of overall ranking in nomination races with total rates of functional indicators. Results: Results show, that rates of chosen functional parameters of Wingate test seem to be a suitable indicator of anaerobic endurance in category K1. High relation between performance and rates of chosen functional parameters was not reliably proved. Core words: Wingate test, functional indicators, anaerobic endurance, factors, performance, K1 junior women, correlation.
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Effect of exteroceptive stimulation on muscle tone after physical activity
Hafič, Peter ; Šifta, Petr (advisor) ; Malá, Jitka (referee)
Title: Effect of exteroceptive stimulation on muscle tone after physical activity Aims: The aim of this diploma thesis is to summarize theoretical findings regarding the muscle tonus, biomechanical characteristics of soft tissues and the influence of exteroceptive stimulation on muscle tonus. In practical part, the influence of exteroceptive stimulation on muscle tonus after anaerobic exercise was evaluated using the measuring instrument - myotometer. Methods: Diploma thesis was approached as pilot and was processed at FTVS-UK in the form of analytical-comparative study on the group of six probands who experienced endurance Wingate test and then they underwent the exteroceptive stimulation technique. The main objective of this experiment was the evaluation of effect of stroking - the exteroceptive stimulation on muscle tonus. The muscle tonus was measured before the exertion, after anaerobic exertion, after passive rest and after exteroceptive stimulation. Measuring of muscle tonus of m. soleus was performed in FTVS-UK laboratory using myotonometer. The data were displayed through analog-digital convertor and were subsequently processed in program Matlab. Outcomes: Experiment partly proved mutual relationship between skin and muscle and possibility of influencing the muscle using the exteroceptive...
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Conditional abilities of Czech ice hockey players in NHL according to the Wingate test
Janek, Michael ; Heller, Jan (advisor) ; Vojta, Zdeněk (referee)
Title: Conditional abilities of Czech ice hockey players in NHL according to the anaerobic Wingate test Aims: The aim of this thesis was to find out and evaluate the level of anaerobic readiness of selected Czech forwards and defenders playing in NHL between 2001/2002 and 2015/2016 seasons. The evaluation was based on comparison of the results in Wingate test of the research groups and specified standards of the first league (ELH) players. The other purpose was to find out whether there are differences between the results of the forwards and defenders. Methods: There were used the research methods of quantitative analysis including effect size. Research sample consists of the group of 26 forwards (mean age = 20.5 ± 4.4) and the group of 16 defenders (mean age = 23.2 ± 4.5) who have played in NHL. Results of the main parameters, i.e. peak power output, peak power relative to 1 kg of body mass, anaerobic capacity, anaerobic capacity relative to 1 kg of body mass, of the 30 s anaerobic Wingate were used. The data were collected from database of Faculty of PE and sport, Charles University in Prague and confronted with the first league ELH standards from the longitudinal research (Heller, Vodička 2014). The comparison was based on the mean values and dispersion of performances, effect sizes were...
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Performance aspects in white water slalom
Bílý, Milan ; Süss, Vladimír (advisor) ; Pollert, Jaroslav (referee) ; Tomajko, Dušan (referee)
Title: Performance aspects in white water slalom Aim The study is a summary of articles published between the years 2006 - 2011. The aim is to present the researched issue of top - level sport in the example of white water slalom. Articles are arranged in accordance to the factors of sport performance. The first thematically include articles concerned with conditioning factors of performance, then continue articles analyzing somatic factors and at the end there are listed papers on psychological preparation and psychological factors. Methods These articles were mostly case studies which have been conducted on a sample of national team athletes or top athletes in the Czech Republic. The exception is the articles 5.3 and 5.4, which are descriptive studies on a large sample of top world class athletes. The studies used a survey and testing. Results The individual articles addressed the importance of performance indicators in white water slalom, applied to the selected factors. Results of studies are always subjected to deliberately selected files of athletes, top-level competitors in the Czech Republic and abroad. The results, therefore, cannot be generalized and applied to a population of white water slalom racers, but can show some patterns that could be accepted in practice.
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Analysis of three several-month training sessions of the endurance runner at higher altitudes
VONDRÁŠKOVÁ, Aneta
The aim of this diploma thesis is to analyze three several-month concentration of a long-distance runner at higher altitude. Specifically, we compared the results of the measured values before staying in zones of high altitude and after arrival from high altitude. The tested individual was housed in Kenya in the town of Iten, located at 2,400 meters above sea level. To elaborate this thesis, we used the method of content analysis and the comparative method. To obtain the results, we used laboratory tests spiroergometry, spirometry, body composition and Wingate test. Then, the data was processed using material significance. The material significance was defined using Cohen's d. Our results showed an increase in red blood cells, an increase in VO2max, a reduction in heart rate, a reduction in morning heart rate. From these results, it is clear that alpine training has a positive effect on the performance of the athlete.
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Conditional abilities of Czech ice hockey players in NHL according to the Wingate test
Janek, Michael ; Heller, Jan (advisor) ; Vojta, Zdeněk (referee)
Title: Conditional abilities of Czech ice hockey players in NHL according to the anaerobic Wingate test Aims: The aim of this thesis was to find out and evaluate the level of anaerobic readiness of selected Czech forwards and defenders playing in NHL between 2001/2002 and 2015/2016 seasons. The evaluation was based on comparison of the results in Wingate test of the research groups and specified standards of the first league (ELH) players. The other purpose was to find out whether there are differences between the results of the forwards and defenders. Methods: There were used the research methods of quantitative analysis including effect size. Research sample consists of the group of 26 forwards (mean age = 20.5 ± 4.4) and the group of 16 defenders (mean age = 23.2 ± 4.5) who have played in NHL. Results of the main parameters, i.e. peak power output, peak power relative to 1 kg of body mass, anaerobic capacity, anaerobic capacity relative to 1 kg of body mass, of the 30 s anaerobic Wingate were used. The data were collected from database of Faculty of PE and sport, Charles University in Prague and confronted with the first league ELH standards from the longitudinal research (Heller, Vodička 2014). The comparison was based on the mean values and dispersion of performances, effect sizes were...
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Analysis of the influence of ski training in the first year of the study program PE and Sport at high altitude on the selected students' fitness requirements
KŘÍŽENECKÝ, Daniel
This thesis analyzes the physical predispositions of students from the first grade of the physical education who attended a ski course. This course took place in France. This fact is quite important for the thesis because the course took place in a higher altitude. The main aim of the thesis is to compare results of tested probands before and after the course. At first, there was an information meeting where we provided more information about the aim of this thesis and about the testing. After this meeting we went to KTVS laboratory where the first measuring happened. After that all probands and other students left for the ski course to France for a week. The accommodation was in an Alpe d´Huez center which is situated 1860 meters and the highest point of it which is 3330 meters above the sea level. Probands were practicing in very high altitude all week. In this thesis we also look at how hard it is to work in this altitude, what kind of advantages and disadvantages it might have and which danger might come up. It is also necessary to think about the process of how probands should prepare themselves not to underestimate anything. The second measuring happened after the return to the Czech Republic. It also took place in KTVS laboratory. After the measuring we started analyzing all measured data of probands. We compared this data. After that we realised what this course brought to the students. We wanted to know what happens in following parts: body composition, Wingate test, spiroergometry and spirometry. In each part we were interested in some specific parameters that are related to this topic. We included specific parameters like: body fat, muscle mass, body water, maximum performance, average performance, maximum 5 seconds performance, fatigue index, VO2max, oxygen pulse, minute respiratory volume and vigorous vital capacity.
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Comparison of racing performance and the results of laboratory tests as indicators prerequisites for top runners on the middle and long distance
VONDRUŠKOVÁ, Jana
In this Bachelor Thesis, the author is focused on the observation of top athletes in 800 m, 1,500 m and 3,000 m runs. The thesis was based on the comparison of racing performance with the results of laboratory tests. The purpose of the work was to predict the performance in certain disciplines based on predetermined tests. We used the content analysis, content synthesis, and measurement method to select the data. We used the measurement method to determine the results from the laboratory. The laboratory tests we used were spiroergometry, spirometry, body composition test, and Wingate test. Then we processed the data using material significance. For significance, we used the Sperman's correlation coefficient. We have defined materiality by Cohen´s d. In the end of the work, we determined the connection between the performance of athletes in 800 and their results from Wingate test, as well as some connection of performances at athletes in 1 500 m, 3 000 m and their results from the spiroergometry test.
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