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Modification of the crank store on a bicycle
Kupčák, Radim ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
In its first half this thesis describes most common materials used in the bicycle industry as well as various types and standards of bottom brackets and mentions their pros and cons. Starting with the oldest cotter pin type all the way to the most modern press fit bottom brackets. The major objective of the second part of this thesis is to design a crankset based on the research in the first half. One of the most important aspects of the design was to choose a suitable type of bottom bracket for non-competetive riding. Structural analysis using finite element method was done and the design was altered accordingly. In the end the process of manufacture was described.
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Development of a mobile application for fitness activities for the Android OS
VESELÝ, František
The objective of this bachelor thesis is to create a mobile application for the fitness activities which is using sensors in mobile phones. The application is using accelerometer and proximity sensor for different activities. It is about push ups, pull ups, squats and sit ups. The application also can show a graph with historical data of each fitness activity. Finally, the application is published and free to download in the Google Play online store. The theoretical part presents Android operating system, description of the Android Studio and java language. The practical part of this thesis contains description of the development of the mobile application, description of the creation of the user interface and a connection with the logic of the application. Then the thesis includes description of a work with data, the connection with sensors, a process of publishing the application and a summary of reviews from the users.
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Analysis of variability and difficulty of elements in sports aerobics performances - seniors women (European championship 2014, 2017,2019)
Čadová, Tereza ; Hájková, Jana (advisor) ; Kainová, Lucie (referee)
TITLE: Analysis of variability and difficulty of elements in sports aerobics performances- seniors women (European championship 2014, 2017, 2019) AUTHOR: Bc. Tereza Čadová DEPARTMENT: Department of physical education SUPERVISOR: PaedDr. Jana Hájková ABSTRACT: The main aim of this diploma work was to analyse sports aerobic¨s choreographies regarding the difficulty, variability and comparing the results. The analysis focused on the final choreographies of the six best women contestants in the Europe's Championship in 2014, 2017 and 2019 using the observant, analysis and result comparison method. This analysis followed criteria which was given in advance. In the conclusion the analysis results are defined anh show that the choreographies hasn't improved technically in the along the analysed years. KEYWORDS: Sports aerobics, technical index, variability, analysis, elemenst of difficulty
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Modification of the crank store on a bicycle
Kupčák, Radim ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
In its first half this thesis describes most common materials used in the bicycle industry as well as various types and standards of bottom brackets and mentions their pros and cons. Starting with the oldest cotter pin type all the way to the most modern press fit bottom brackets. The major objective of the second part of this thesis is to design a crankset based on the research in the first half. One of the most important aspects of the design was to choose a suitable type of bottom bracket for non-competetive riding. Structural analysis using finite element method was done and the design was altered accordingly. In the end the process of manufacture was described.
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The Influence of Dynamic Stretching to the Immediate Enforcement
SVOBODA, Vojtěch
The work is focused on the evaluation of the impact of two types of stretching on subsequent performance. With regard to the content can be divided into practical and theoretical. A practical part brings relevant knowledge to solve problems. Attention is given to the anatomy of the muscle fiber, the physiology of muscle contraction and muscle connections with the central nervous system. The study also describes the proprioceptive function of muscles, the anatomical dimensions and principles of operation. In connection with the internal control possibilities stretching the muscles are in the theoretical part also describes the reflexes at the level of the muscle fiber. General principles of stretching can be found in this section too. The following is a detailed resolution types of stretching and their implementation, advantages and disadvantages. At the end of the theoretical part describes general contraindications stretching and hypermobility as one of the risk factors. The second part belonged to practical research. The research aims to answer the question: "Which type of stretching before exercise has a better effect on the actual performance?" For this purpose we selected eight active athletes. After showing of concrete stretching workouts were tested person familiar with the disciplines in which the effect of stretching measured. It was a 40 yard sprint, a specific form of the shuttle run, jump from a place in the distance and the implementation of push-ups without stopping to find the maximum number of times. These disciplines have been always performed after the application of one type of stretching, with a minimum range of measurement was determined at 24 hours, for reasons of objectivity research. Overall, each activity was measured four times - twice after the static and twice after the dynamic stretching. Research records the individual variations in the measured values after the static and dynamic stretching in all tests. For better clarity, the deviations from the established arithmetic averages referring to the average positive and negative deviations. The resulting values are then captured in tables, graphically and verbally explained. All the four measurements showed analogous results. In the first three disciplines is a better determination of the dynamic type of stretching due to the relatively higher performance of individual activities. For Sprint and the shuttle run times were recorded less necessary to overcome the distance. At the same time was also significantly better in negative average deviation of the measured times after dynamic stretching. The last tested motion became workout pushups without rest for the maximum number of repetitions achieved. Based on this research it is not possible to determine the appropriate method of preparation for discipline. Implementation of push ups assigns power-endurance nature. Due to the relatively clear results for the other, short-term activities associated with the maximum of performance, it seems clear that the type of stretching manifests a greater impact with this type of load compared to strength-endurance exercise in the form of push-ups. Chapter titled "Discussion" is again divided into two parts. In the first analysis is made of the results and conclusions with regard to possible opposition view on objectivity of measurement. Research is generally considered as the objective and the results are accorded legitimacy. In the second part of the discussion are the conclusions obtained subject to comparison with other international studies that have looked at the impact of these types of stretching at the same or a similar discipline. Given the above facts and research itself can be considered for answering the research question. Short-term disciplines carried out with maximum intensity can be demonstrated dynamic stretching before the actual performance for better compared to static stretching.
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