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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...
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The effect of weight manipulation on physical performance in combat sports
Nesvadba, Vojtěch ; Třebický, Vít (advisor) ; Omcirk, Dan (referee)
Author: Bc. Vojtěch Nesvadba Title: The Effect of Weight Manipulation on Physical Performance in Combat Sports Objectives: To assess the effect of rapid weight loss and rapid weight gain on strength and to assess the effect of rapid weight loss on health biomarkers. Methods: A total of 19 full-contact combat sports athletes participated in this study and underwent a 7-day period of intentional rapid weight loss, resulting in 5% loss of their initial body weight. Subsequently, within two hours, they regained 2.6% of their body weight. To assess the effect of this rapid weight manipulation, we employed a comprehensive battery of isometric, dynamic, and anaerobic tests to measure the strength-related abilities and body composition (before rapid weight loss, after rapid weight loss and after rapid weight gain). Furthermore, we monitored the hydration status throughout the study using diagnostic strips. The participants also completed a series of purpose-specific questionnaires. Results: In the condition after rapid weight reduction, we observed statistically significant decrease in the maximal isometric strength of the left knee flexors, maximal explosive strength of the upper and lower extremities, and a statistically significant decline in the hydration status of the participants. In the condition...
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Comparison of explosive power in elite youth soccer players.
Horizral, Peter ; Bujnovský, David (advisor) ; Vampola, Jindřich (referee)
Title: Comparison of explosive power in elite youth soccer players Objective: The objective of this thesis was to determine the level of difference in selected parameters of the explosive strength of the lower limbs of elite youth soccer players between the age categories U14 and U15. Methods: The research set of this diploma thesis consisted of a total of 39 elite youth football players in the age category U15 and U14, who at the time of the test were players of the highest domestic football competition. The research group consisted of players of all playing positions (goalkeeper, defender, midfielder, forward). To analyze selected parameters of the explosive power of the lower limbs, a total of three types of vertical jump were used in laboratory conditions: vertical jump from a squat (English "squat jump"; SJ), vertical jump without arm swing (English "counter-movement jump; CMJ) and jump long jump ("broad jump" in English; BJ). The following parameters were analyzed: vertical jump height (cm) and long jump length (cm). Results: Statistical analysis found significant differences (p < 0.01) between monitored parameters. The analysis found a significant difference (p < 0.01) between squat vertical jump (SJ) and non-arm swing vertical jump (CMJ) height between the U15 and U14 groups. Older U15...
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Developing the explosive strength of the lower extremities of the players of the extra-league team in volleyball
Čmeľ, Martin ; Vorálek, Rostislav (advisor) ; Petružela, Jan (referee)
Title: Developing the explosive strength of the lower extremities of the players of the extra league team in volleyball. Subject: Measuring the jump height of twelve players of the extra league team. Objectives: Measure to see if it is possible, by systematically training the explosive strength of the lower extremities, to increase the jump height for volleyball players after a period of three months. Results: To compare the results of each single measurement with the first measurement performed prior to systematic training of the explosive strength of the lower extremities Key words: Development, explosive strenght, lower extremities, player, volleyball, team.
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The comparison of strength of lower limbs in different ski and snowboard disciplines
Tišer, Kryštof ; Jindra, Matouš (advisor) ; Gnad, Tomáš (referee)
Title: Comparison of explosive strength of lower limbs in different ski and snowboard disciplines. Aims: The aim of this thesis is to compare explosive strength of lower limbs in different ski and snowboard disciplines. Methods: This is an empiric-theoretical thesis. A simple experiment (testing) was used to verify the hypothesis. 6 used sets participated in the quantitative research. Testing was carried out using two standardized tests, broad jump and vertical jump (Sargent jump). In both tests the best of the three trials was evaluated. Results: In two tests for the explosive strength of the lower limbs significant differences in this ability were shown between some ski disciplines and snowboardcross. The best results in both tests were achieved by representatives of alpine skiing which disproved our hypotheses. Only the expectation that ski jumpers would perform better than the nordic combination was fulfilled. Key words: explosive strength, broad jump, vertical jump, skiing, cross country skiing, grass skiing, nordic combination, ski jumping, alpine skiing, snowboardcross
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Selected fitness aspects of professional firefighters competing in fire sport and TFA
Miřátský, Petr ; Gryc, Tomáš (advisor) ; Coufalová, Klára (referee)
Title: Selected fitness aspects of professional firefighters competing in fire sport and TFA Objectives: The aim of the thesis was to find out the level and the difference in the parameters of body constitution, postural stability and muscular and explosive force of lower limbs with groups of professional firemen competing in fire sport and TFA Methods: The research sample was represented by two groups of professional firemen (17 fire sportsmen and 17 TFA competitors). We assessed chosen parameters of body constitution (Tanita MC-980MA), postural stability (RS Footscan), explosive force (Kistler) and muscular force (Cybex Humac Norm). Assessed parameters of body constitution were percentage of body fat and fatless matter. In the tests of postural stability we assessed total travel way of the centre of pressure (TTW), narrow stand (open and closed eyes) and one-leg stand (right, left). When testing explosive force, overall produced maximal force and height of the leap were assessed. Muscular force was assessed with the help of muscular force moment in concentric muscle activity with angular velocity 60ř·s-1. Results: We found out a significant difference between the two groups in the tests of postural stability - narrow stand with open and closed eyes (F1,32 = 9,94, p<0,01), in the tests of...
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The explosive power of the lower limbs in handball.
Frkal, Jakub ; Tůma, Martin (advisor) ; Šťastný, Petr (referee)
Název: Odrazová síla dolních končetin v házené Cíl práce: Vytvořit program pro zlepšení odrazové síly dolních končetin u vybraného družstva starších dorostenců v házené. Metody: U experimentální a kontrolní skupiny jsme použili klasické testování na základě náhodného výběru. Dále jsem v průběhu experimentu využil tři metody rozvoje odrazové síly dolních končetin: kontrastní, rychlostní, plyometrická. Dále byla využita statistická metoda pro komparaci výsledků. Výsledky: Výsledkem práce je zjištění, že u sledovaného družstva byl vytvořený program rozvoje explozivní síly účinný. Probandi z experimentální skupiny dosáhli za sledované období výrazného zlepšení ve většině cviků testové baterie. Klíčová slova: Házená, odraz, silové, koordinační schopnosti, explozivní síla. ABSTRACT Title: The explosive power of the lower limbs in handball. Objectives: To create a program to improve explosive power of lower limbs of the cooperative older juniors handball. Methods: In experimental and control groups, we used the classical testing on a random basis. I also used three method during the experiment to develop explosive power of the lower limbs: contrast, speed, plyometric. It was also used statistical method for comparing results. Results: The finding is that in the reporting team was created explosive...
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Stimulation of explosive strength in annual training cycle for hockey players
Obrtel, Michael ; Jebavý, Radim (advisor) ; Arnošt, Pavel (referee)
Title: Stimulation of explosive strength in annual training cycle. Objectives: The aim of this work is to design a training program explosive strength for each period of annual training cycle. Methods: In our thesis we used a method of analysis and a method of comparison. The analysis method we used in the analysis of individual types of strength capabilities of each period and annual training cycle and comparison method of comparing the information obtained from literature and expert consultations. Results: We created training programme of explosive strength for each period of annual training cycle. Keywords: explosive strength, ice hockey, off - ice training
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