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Influence of cold water immersion on repeated strength endurance performance in football players
Šíma, Marek ; Jebavý, Radim (advisor) ; Blažek, Dušan (referee)
Title: Influence of immersion in cold water on repeated strength endurance performance in football players Objectives: The aim of this study was to assess the acute effects of cold water immersion on repeated strength endurance performance in the form of 30 maximum vertical jumps in football players. Methods: The effect of immersing the lower limbs to the level of the navel in cold water on repeated strength endurance performance in the form of CMJ (countramovement jump) in football players. Twenty-two football players (men) performed an entry and exit strength endurance test in the form of vertical jumps on the Kistler board. Between the input and output performance tests, two cold water immersion regeneration procedures (CWI) and passive rest (PAS) were applied. For the evaluation of force endurance performance, data on jump height (cm), force impulse (Ns), flight time (ms), speed (m / s), force (N), force / weight (N / kg), power ( W), power / weight (W / Kg). As a marker of fatigue, blood lactate levels (mmol / l) were monitored, we also monitored skin temperature (ř C) during CWI and subjective feeling of fatigue (1-10). The influence of two types of regeneration procedure and two strength endurance performances were evaluated using ANOVA. Results: No statistically or materially significant...
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Prevention of damage of the posterior tigh muscles in active football players
Stehlíková, Nathalie ; Plevová, Kristýna (advisor) ; Kozel, Jakub (referee)
BACHELOR THESIS ABSTRACT First name and surname: Nathalie Stehlíková Supervisor: Ing. Kristýna Plevová Title of the bachelor thesis: Prevention of damage of the posterior tigh muscles in active football players Abstract: This bachelor thesis deals with prevention of damage of the posterior tigh muscles in active football players, also known as hamstrings. The aim of this thesis is to create a training unit to stretch and strengthen posterior thigh muscles. Furthermore, to create information brochure about before and after training preparations. This thesis is both theoretical and practical. Theoretical part deals with football, skeletal muscle anatomy and detailed anatomy of posterior thigh muscles, risk factors leading to injuries, injuries of posterior thigh muscles, it's treatment and therapy. A considerable portion of this thesis is focused on return to training process, prevention of the injury, regeneration and compensation exercises. Eight probands of AC Sparta Praha took part in the practical part. They were randomly divided into experimental group, which did the chosen exercises and control group, which only received information brochure but did not participate in the exercises. As a part of the entrance and exit testing, evaluation of shortened muscles, range of motion, modified muscle test and...
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The effect of a short-term intervention program for development of sprint abilities in young soccer players (U15)
Chaloupka, Tomáš ; Kokštejn, Jakub (advisor) ; Frýbort, Pavel (referee)
Title: The effect of a short-term intervention program for development of sprint abilities in young soccer players (U15) Autor: Tomá Chaloupka Head of work: Mgr. Jakub Kok tejn, Ph.D. Objectives: The aim of the thesis is to verify the effectiveness of a short-term intervention program for sprint speed development in young soccer players (U15). Methods: The research sample included soccer players (15 year old; n=12; 14,2±0,3 years) from the highest competitive level in the Czech Republic. For the interventional effect verification we used several sprint tests (sprint on 5, 10 and 30 meters, shuttle sprint 2x10 meters). Data analysis was performed by using IBM SPSS software version 22. Results: In the experimental group we did not found any significant improvement in the posttest in any individual tests after completion of the short-term speed-oriented intervention. Based on our results we note that we have failed to verify the effectiveness of the short-term intervention program for the sprint development in the young soccer players. Keywords: movement intervention, young, soccer, speed
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The impact of fatigue on the kick accuracy of young soccer players
Ižovská, Jana ; Malý, Tomáš (advisor) ; Zahálka, František (referee)
Title: The impact of fatigue on the kick accuracy of young soccer players Objectives: Identify the relationship of fatigue and the kick accuracy of young soccer players. Methods: The study group consists of 20 players in the age between 17 and 22, who are actually operating on league level in the reserve of elite soccer club. Before loading, the players had 3 attempts of shooting into the middle of the goal by dominant and non-dominant leg. After loading, they had 3 attempts of shooting into the middle of the goal too, but only by dominant leg. We measured the speed and the accuracy of kicks before loading and after the maximum load. Results: The results of work give information about the impact of fatigue on the kick speed and accuracy of young soccer players. It has been found that after the impact of loading the soccer players had worse results in the studied parameters. Keywords: fatigue, kick, loading, skill, soccer
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Analysis of soccer match loading according to player position.
Bujnovský, David ; Malý, Tomáš (advisor) ; Buzek, Mario (referee)
Title: Analysis of load football players in a match in terms of gaming post. Objectives: The aim of this essay is to determine the size of the musculoskeletal load of players during friendly football matches. At the same time the aim is to determine the differences in the size of the musculoskeletal load between the different players' positions measured in the file. Methods: This essay deals with the indirect (mediated) observations, due to the fact that data was recorded by devices from which this data was then processed to obtain the result. To evaluate the size of the musculoskeletal load sport testers "Polar Team 2" were used. For the statistical evaluation the processed material significance using the so-called "size effect" was used. Results: Regarding the size of the musculoskeletal load, no substantively significant difference was found between the defenders and midfielders in the zone above the ANP. Significant material differences were observed between defenders and attackers, materially significant differences were also found between the midfielders and attackers in the zone above the ANP. However, based on the conditions under which measurements were carried out, it is clear that definite conclusions cannot be drawn. Keywords: Football, physical load, heart rate, player's positions
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Strength asymmetries in female soccer players depending on the player's post.
Lisoň, Maroš ; Ižovská, Jana (advisor) ; Šťastný, Petr (referee)
Title: Strength asymmetries of female soccer players according to playing position Objectives: The aim of this diploma thesis was to characterize the unilateral and bilateral asymmetries of knee flexors and extensors in elite football players based on player positions and to define the characteristic isokinetic strength profile for each playing positions. Methods: The research group consisted of 66 female football players who play in the highest czech league. The players completed laboratory testing under the supervision of qualified experts, which took place according to the standard conditions described in the methodological part of this study. In the case of players, we examined the strength asymmetries in the flexors and extensors of the knee and compared them between the 4 basic positions in football. Results: After summing the data from all angular velocities (60ř.s-1 , 180ř.s-1 , 300ř.s-1 ) we found that 33% of our attackers had quadriceps asymmetries above 10%, which was the most of all posts. This is followed by goalkeepers with 28% and midfielders with 25%. The lowest percentage of quadriceps asymmetries was recorded in defenders 22%. Even in the case of hamstrings, we recorded the most asymmetries (> 10%) in attackers, up to 46%. For midfielders and defenders, it was the same result for...
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Changes speed indicators by influence of specific fatigue in soccer players
Hovorka, Jakub ; Malý, Tomáš (advisor) ; Teplan, Jaroslav (referee)
Title Changes speed indicators by influence of specific fatigue in soccer players. Aim of Study Diagnose specific effects of fatigue from the soccer match on the manifestation of speed abilities of football players at AC Sparta Praha categories of players up to 19 years. Method Selected research sample consists of 11 players on the year of birth 1994 (3 players), 1995 (7 players) and 1996 (1 player) U19 category. Tested sample passed measurement in one friendly match against the same old players. They passed the test 4 times before the game, 4 times at the half-time break and 4 times immediately after game. During this testing, I watched the effect of fatigue on specific speed capability of players. At work, I used a quantitative research method. I prepared and statistically evaluated the resulting data obtained during testing using photocells. Results Testing was attended by 11 players from selected professional club team U19 category . Measurement of speed in field test was measured using photocells Brower Timing System. The results provide informations about the speed capabilities of the players and their reduction during the fatigue gradually emerging during a football game. The results reveal that the speed capabilities of most players were reduced. They also briefly deal with the question...
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Physical activity for health in sport youthα
Kokštejn, Jan ; Kokštejn, Jakub (advisor) ; Frýbort, Pavel (referee)
Title of Bachelor thesis: Physical activity for health in sport youth Author: Bc. Jan Kokštejn Head of work: Mgr. Jakub Kokštejn, Ph.D. Aim: Findings the size of physical activity in youth soccer players during a week mode and comparison of selected indicators with recommendations of physical aktivity for health promotion. To identify possible differences in physical activity between younger (16-17 years old) and older (18-19 years old) players in adolescent category. Methods: The research samples consist of younger soccer players (n=25; 16,2±0,9 years old) and older soccer players (n=25; 18,6±0,3 years old). Accelerometers Actigraph GT3X were used for determining level of physical activity during the week. Results: The average daily amount of modern to high intensity physical activity exceeded in both groups of soccer players worldwide used recommendations, which is 60 minutes. For daily number of steps, the group of younger players exceeded recommended amount according to Sigmund et al. (2005). The group of older players remained just below this threshold, but within the recommended range. In terms of energy output both groups reached values between 8-9 kcal.kg-1 .day-1 , according to selected criteria met physical activity recommendations. Energy output value and the number of steps did not...
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The impact of speed during isocinetic contraction for strength ratios of m. quadriceps to hamstrings in youth soccer players U15-19
Trýzna, Jakub ; Šťastný, Petr (advisor) ; Kokštejn, Jakub (referee)
Title: The impact of speed during isocinetic contraction for strength ratios of m. quadriceps to hamstrings in youth soccer players U15-19 Objectives: The objectives of this bachelor thesis is to find out a relative strength ratios of m. quadriceps to hamtrings of both lowr limbs by means of isocinetic dynamometry using a Cybex device. Methotds: Isocinetic dynamometry was used for an assignmnent of strength abilities using a Cybex device. Agility tests were used for an assignment of speed. Results: H/Q strength ratios were icreased with icreasing angular speed. Muscular strength itself decreased by increasing speed of muscular contraction both in flexion and extensit. Keywords: Peak torque, izocinetic dynamometry, soccer, training
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