National Repository of Grey Literature 45 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Profile of youth footballers as goalkeepers
Zvoníček, Matěj ; Gryc, Tomáš (advisor) ; Bujnovský, David (referee)
Title: Profile of youth footballers as goalkeepers Objectives: The objective of this study was to compare selected parameters of body composition, level of static postural stability and level of lower extremities explosive strength between male and female goalkeepers in soccer and between selected age categories. Methods: A total of 33 male (n = 22) and female (n = 11) soccer goalkeepers participated in the study. They were divided into six test groups based on gender and age category (14-15, 16- 17 and 18-19 years) for performance assessment. These groups were assessed for basic anthropometric data (body height and weight), body composition parameters (% body fat, fat free mass), and level of static postural stability (deviations of the total center of pressure path) in four types of stands (narrow stand open eyes/closed eyes, right/left lower limb stand) and lower extremities explosive strength (jump height, relative force impulse, relative maximum force produced) in four types of jumps (counter movement jump free arms, counter movement jump, squat jump, drop jump). We used a Tanita MC-980MA bioimpedance device (Tanita Corporation, Japan) to assess body composition parameters, a Footscan pressure plates (RSscan International, Belgium) to assess postural stability, and a KISTLER 8611 force plates...
Individual perception and performance changes during 3 week intervention programme with beginners golfers
Patzeltová, Michaela ; Gryc, Tomáš (advisor) ; Carboch, Jan (referee)
Title: Individual perception and performance changes during 3 week intervention programme with beginners golfers Objectives The study aimed to evaluate the effect of a 3 week coaching program on golf skills (full swing and putting) and the perception of golf motor skills. It also sought to monitor participants' perceived difficulty and commitment levels using training diaries and investigate their subjective goal-setting and strategies for achieving them. Methods The study involved 43 participants who were divided into four groups, three of which had 11 participants and one with 10 participants. The participants were engaged in this project for 5 weeks in total. There was an MSRS questionnaire one week before the pre-test, then 3 weeks of intervention, post-test and again MSRS after one week after the tournament. Participants completed a reflective post-block diary after every week. The training diaries were used to identify players understanding of general golf instruction and the perception of golf motor skills. Results According to the quantitative results of this study, there was a significant difference in MSRS between pre-and and post-test. There was also a significant difference in perceived difficulty, however, no significant difference was found over the weeks in mental effort. There was a...
Effect of different shooting technique on its accuracy and ball velocity in floorball players
Pekárková, Nikol ; Gryc, Tomáš (advisor) ; Dragounová, Zuzana (referee)
Name: The influence of shooting technique on its accuracy and ball speed in floorball players Goal: The purpose of the work was to verify the procedure for testing the shooting level of male and female floorball players and then to identify and describe the differences in the parameters of ball speed and shooting accuracy between four different types of shots (pull, wrist, golf, hammer) when shooting at two different locations (top and down). Methods: The research group consisted of 2 male and 2 female floorball players of the highest youth competition. Ball speed was measured using a Stalker Solo2 radar device and 2D video analysis using a SONY video camera and TEMA software was used to analyze accuracy. The individual targets for shooting were marked out using holes in the training sheet, which was placed on the floorball goal. The goal was 4 meters away from the shooting spot, and players shot at the goal in random order of shot types and target location. Data were evaluated in MS Excel. A two- sample T-test (p <0.05) was used to express the difference between individual shot types, target location and between men and women. Results: We found significant differences in ball speed: between the pull shot and the wrist, between the wrist and the golf ball, and between the golf ball and the putter....
Possibilities of using the squat in training and physical development
Rubek, Tomáš ; Gryc, Tomáš (advisor) ; Blažek, Dušan (referee)
Title: Possibilities of using the squat in training and physical development Objectives: The aim of the thesis was to comprehensively describe the squat as an exercise with a wide range of uses not only in the training of professional athletes, but also recreational exercisers, or the general public. The work was supposed to summarize the number of possible benefits of the squat and its variants in the areas of improving physical performance and physical and mental health. Methods: The thesis uses research methods, that is, the collection and study of selected relevant literature, as a prerequisite for creating an overwiev of the current state of knowledge in the field of the thesis topic. Results: We have described the areas of possible use of the squat. We have briefly summarized the information contained in the studies found and cited in the thesis. Keywords: literature review, exercise, performance, conditioning, rehabilitation
Golf swing kinematics in health and handicapped golfers with specific disabilities
Hoščálková, Julie ; Gryc, Tomáš (advisor) ; Carboch, Jan (referee)
Title: Kinematics of the full swing in non-handicapped and handicapped golfers with specific disabilities. Objectives: The aim of the thesis was to investigate, analyse and describe the difference in the execution of the full golf swing between a handicapped player and a player without disability limitations. Methods: A sample of 1 able-bodied and 1 handicapped golfer with similar performance was used to investigate the full swing kinematics using the CODA Motion system 3D kinematic analysis and the BodiTrak pressure plate. Specifically, the difference in execution between the players in selected parameters was evaluated. The obtained data were processed in LibreOffice Calc software. T-test for independent samples and Cohen's d were used to determine the statistical and substantive significance of the differences. Results: Statistical and substantive significance of the difference in the execution of the full swing between able-bodied and handicapped players was found (p < 0,01, d > 0,8). Nevertheless, the overall results of the shots were not that different. Keywords: tests, performance, movement, impact factors, analysis
The level of static balance of professional latin american dancers aged 18-30 in relation to their dance classes
Sorokolit, Julie ; Gryc, Tomáš (advisor) ; Nováková, Pavlína (referee)
Title: The level of static balance of professional latin american dancers aged 18-30 in relation to their dance classes Objectives: The main aim of this study was to determine the level of postural stability and to compare its level between dance classes in dancers of Latin dancing. The partial aim of this study was to evaluate the level of motor docility in dancers and also to compare the level of postural stability between male and female dancers. Methods: The research group consists of 31 dancers of Latin dancing (n = 31, age = 22.7 ± 3 years, height = 172.8 ± 9.5 cm, weight = 63.5 ± 10.7 kg) from various dance classes, aged from 18 to 30 years. The dancers were subjected to body composition measurements on a Tanita instrument (Tanita Corporation, Japan) and then postural stability measurements on a FootScan pressure plate (International, Belgium). 4 tests were used to evaluate the level of postural stability (narrow stand with eyes open and closed - 30 s, stand on the right and left lower limb - 60 s). The evaluated parameters of postural stability were the total travel way (TTW) of the center of pressure (COP). The arithmetic mean was used to express the level of postural stability, and the T test was used to determine the statistical significance of the differences, and Cohen's d was used to...
Injury risks and their analysis in czech parkour community
Hubka, Petr ; Gryc, Tomáš (advisor) ; Bačáková, Radka (referee)
Title: Injury risks and their analysis in czech parkour community Objectives: The aim of this bachelor thesis was to find out when, where and how the most common injuries in parkour happen, which individual body segments are most affected and a comparison of injury rates between parkour competitors and non- competitors. Methods: The main methods used were analysis, synthesis and questionnaire survey. The subjects were parkour players aged 15 years and older. The questionnaire survey was used to obtain key information on injuries to recreational and elite parkour athletes. Results: 90% of parkour athletes have suffered at least one injury in the last 3 years of parkour training. The average number of injuries in 3 years of training is for competitive parkour athletes 3.03 and for non-competitive parkour athletes 2.77. The most common type of parkour injury is joint injury i.e. in 44% (n=57 responses). The most common skills that cause injuries in parkour are flips i.e. 36% (n= 40 responses) and jumps (precision, tictac, catleap and others) i.e. 32% (n= 36 responses). The most common place where parkour injuries occur is outdoors, i.e. at 57% (n= 66 responses). The most common body segment injured while doing parkour is the ankle joint (n= 50 responses). The most common cause of injury in parkour is...
Influence of altitude on physiological parameters in snowboardcross athletes
Samková, Eva ; Gryc, Tomáš (advisor) ; Šteffl, Michal (referee)
Title: Influence of Altitude on Physiological Parameters in Snowboardcross Athletes Objectives: The aim of the study was to investigate the effect of altitude and working load on selected physiological parameters (blood lactate concentration, mitochondrial respiration, muscle blood flow and heart rate) in elite snowboardcross riders. Methods: For data collection we used Moxy monitor, Garmin chest belt and EKF Lactate Scout+. The physiological parameters were assessed at two different altitudes and always before and after the sports exercise. The obtained data were then compared and their differences assessed using the statistical method paired t-test, basic statistical and mathematical methods such as mean and standard deviation and percentages were used to express the difference. Results: We found that altitude does not affect mitochondrial respiration or blood flow in lower limb muscles in snowboardcrossers. Furthermore, we found that altitude has an effect on blood lactate concentration and confirmed the so-called lactate paradox. Heart rate was slightly higher after exercise at higher altitude than at lower altitude. Keywords: Oxygen saturation, heart rate, lactate concentration, testing, altitude
The differences in the level and variability of impact factors between golfers of different performance
Kotrba, Milan ; Gryc, Tomáš (advisor) ; Carboch, Jan (referee)
Title: Differences in the level and variability of impact factors in golfers of different performance Aim: The aim of the diploma thesis is to clarify what are the differences in the level and variability of impact factors in golfers of different performance. Methods: The research group consisted of a total of 28 right-handed golfers divided into 3 performance categories. Professional players included all those with PRO status (Age = 28.5 ± 4.33 years, Height = 183.25 ± 4.76 cm, Weight = 85.46 ± 9.92 kg), Among Elite Amateur players with better hcp than 4.2 (Age = 22.67 ±1.63 years, Height = 186.33 ± 7.12 cm, Weight = 81.84 ± 10.04 kg, HCP = 0.47 ± 2.34) and among Amateur players all with hcp 4.3 or worse (Age = 35 ± 9.03 years, Height = 182.78 ± 6.58 cm, Weight = 84.11 ± 12.14 kg, HCP = 7.71 ± 2.57). Probands played a total of 20 strokes with 4 clubs (PW, 8 iron, 5 iron, Driver) after 5 strokes with a full swing to the finish line. In our test, the level and variability of impact parameters were evaluated. The difference between the performance groups was evaluated using the Kruskal-Wallis test at the level of statistical significance alpha <0.05 in the R v3.5.2 program (Vienna, Austria). Results: When evaluating differences between performance groups, we found significant differences in the level...
Weight transfer during the putting stroke
Kosina, Jan ; Gryc, Tomáš (advisor) ; Hráský, Pavel (referee)
Title Weight transfer during the putting stroke Objectives Description of weight transfer during the putting stroke and comparison of interindividual and intraindividual stability due to parametres accuracy and weight transfer. Methods Theory was build up by researching method alongside with studiing technical literature. Testing group consisted of professional golfers. Weight transfer was measured by two plattens KISTLER a kinematics of movement was observed by kinematic analysartor CODA motion system. The analysis of interindividual and intraindividual stability was based on data collected during the testing of professional golf players. Results High interindiviual and intraindividual stability of execution was proved due to parametres weight transfer and accuracy. It was proved that capability of accuracy and stability of execution weight transfering is decreasing alongside with longer distance. For description of weight transfer critical phazes of movement were estabilished. By the measurement was discovered how the weight is transferred during the putting stroke. Key words Golf, weight transfer, putting stroke, force effect, accuracy

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