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Objectifiacation, comparison,, and degree of association of maladaptive indicators in athletes
Kaľata, Maroš ; Malý, Tomáš (advisor) ; Kaplan, Aleš (referee) ; Lehnert, Michal (referee)
Objectification, comparison, and degree of association of maladaptive indicators in athletes Aim: The aim of this study was to identify bilateral and unilateral asymmetries in different components of neuromuscular testing among young athletes, and compare these asymmetries with respect to sport type, age group, performance level, and gender. The secondary aim was to assess the degree of association between types of asymmetry (morphological, balance, strength, and running asymmetry). Methods: The sample population consisted of young male and female athletes aged 10 to 19 with various sports specializations. The participants were grouped by various factors: predominant characteristic of the sport (symmetrical (SY), asymmetrical (ASY), hybrid (HY)); chronological age (10-12 years, 13-15 years, 16-18 years); performance level (elite, sub-elite), and gender. Asymmetry was assessed from morphology and various neuromuscular assessments: distribution of muscle mass on the lower limbs (MA), bilateral differences in the size of the center of pressure path length (APS), maximum active (APF) and impact peak force (IPF) and force impulse (FI) at initial (Z) and final (K) running speed, bilateral asymmetry of knee extensors (Q:Q) and flexors (H:H), and H:Q ratio (unilateral asymmetry) at three angular velocities...
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The relationship between selected conditional abilities and performance in white water slalom (category C1).
Busta, Jan ; Suchý, Jiří (advisor) ; Lehnert, Michal (referee) ; Bielik, Viktor (referee)
The aim of the study was to identify the relationship between selected fitness skills and the performance demonstrated in nomination races (NR) to the Czech Republic national team (NT) and for the Olympic Games. At the same time, we wanted to determine the optimal level of conditioning assumptions and define a model single-canoe sportsman. We were also searching to determine the differences between Senior NT and Junior NT. The research sample (n=17) of the Czech highest competitions series (Czech Cup) participated in testing to determine level of strength, endurance and partly speed assumptions. There were also measured anthropometric parameters (body dimensions and composition) in detail. Testing took place only 5 weeks before NR. The condition indicators were subsequently correlated with the NR performance. For indicators for which significant and at least moderate correlation were found, the possibility of performance prediction was also found. The highest correlations with performance were found in case of on-water sprints: 20m (rs=0,65), 40m (rs=0,86, resp. rs=0,62), 80m (rs=0,58) and 200m (rs=0,795). The on-water sprints are the only indicators, which could be possibly used for the NR performance prediction. In multiple regression of the 2 40m and 1 200m sprints was found high determination...
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Analysis of the sports game loading by help of volleyball example
Hank, Mikuláš ; Zahálka, František (advisor) ; Lehnert, Michal (referee)
The aim of this dissertation was to evaluate and statistically compare the data of the distance of movement and player load (PL) with respect to the player specializations and with respect to the result of rallies. The analysis used the method of 3D kinematic motion analysis of a video recording of the official play-off match in the elite women's category. 3D reconstruction accuracy was calculated with a standard deviation of 0.0296 m (0.3%). A total of 14 players were evaluated (age = 25 ± 6 years; height = 182.3 ± 6.2 cm; weight = 72.1 ± 5.8 kg) in a total of 4 sets. 85% of all rallies lasted up to 12.4 s and 95% lasted up to 18 s. The average duration of the rally reached 7.76 ± 5.1 s. In the range of 0.7 m to 2 m was performed 91.8 ± 1.3 % of distance of movement over 0.7 m. In the range of 0 m to 0.7 m, the specialization spiker reached 60.5% of the total distance of movement. For blocker it was 59.8%, setter reached 54.1%, Opposite reached 62.1% and libero 57.9%. The highest ratio of movement was reached by the spiker for the forward direction (35.8%). The highest distance of movement was reached by the setter (1648 m). Players reached at 50 % speed value from 1.32 m/s in the backward direction for the blocker and setter, up to the maximum speed at 50 % for the setter with a value of 2.09 m/s...
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Analysis of the sports game loading by help of volleyball example
Hank, Mikuláš ; Zahálka, František (advisor) ; Lehnert, Michal (referee) ; Zahradník, David (referee)
The aim of this dissertation was to evaluate and statistically compare the data of the distance of movement and player load (PL) with respect to the player specializations and with respect to the result of rallies. The analysis used the method of 3D kinematic motion analysis of a video recording of the official play-off match in the elite women's category. 3D reconstruction accuracy was calculated with a standard deviation of 0.0296 m (0.3%). A total of 14 players were evaluated (age = 25 ± 6 years; height = 182.3 ± 6.2 cm; weight = 72.1 ± 5.8 kg) in a total of 4 sets. 85% of all rallies lasted up to 12.4 s and 95% lasted up to 18 s. The average duration of the rally reached 7.76 ± 5.1 s. In the range of 0.7 m to 2 m was performed 91.8 ± 1.3 % of distance of movement over 0.7 m. In the range of 0 m to 0.7 m, the specialization spiker reached 60.5% of the total distance of movement. For blocker it was 59.8%, setter reached 54.1%, Opposite reached 62.1% and libero 57.9%. The highest ratio of movement was reached by the spiker for the forward direction (35.8%). The highest distance of movement was reached by the setter (1648 m). Players reached at 50 % speed value from 1.32 m/s in the backward direction for the blocker and setter, up to the maximum speed at 50 % for the setter with a value of 2.09 m/s...
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The relationship between selected conditional abilities and performance in white water slalom (category C1).
Busta, Jan ; Suchý, Jiří (advisor) ; Lehnert, Michal (referee) ; Bielik, Viktor (referee)
The aim of the study was to identify the relationship between selected fitness skills and the performance demonstrated in nomination races (NR) to the Czech Republic national team (NT) and for the Olympic Games. At the same time, we wanted to determine the optimal level of conditioning assumptions and define a model single-canoe sportsman. We were also searching to determine the differences between Senior NT and Junior NT. The research sample (n=17) of the Czech highest competitions series (Czech Cup) participated in testing to determine level of strength, endurance and partly speed assumptions. There were also measured anthropometric parameters (body dimensions and composition) in detail. Testing took place only 5 weeks before NR. The condition indicators were subsequently correlated with the NR performance. For indicators for which significant and at least moderate correlation were found, the possibility of performance prediction was also found. The highest correlations with performance were found in case of on-water sprints: 20m (rs=0,65), 40m (rs=0,86, resp. rs=0,62), 80m (rs=0,58) and 200m (rs=0,795). The on-water sprints are the only indicators, which could be possibly used for the NR performance prediction. In multiple regression of the 2 40m and 1 200m sprints was found high determination...
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The relationship between selected conditional abilities and performance in white water slalom (category C1).
Busta, Jan ; Suchý, Jiří (advisor) ; Lehnert, Michal (referee) ; Bielik, Viktor (referee)
The aim of the study was to identify the relationship between selected fitness skills and the performance demonstrated in nomination races (NR) to the Czech Republic national team (NT) and for the Olympic Games. At the same time, we wanted to determine the optimal level of conditioning assumptions and define a model single-canoe sportsman. We were also searching to determine the differences between Senior NT and Junior NT. The research sample (n=17) of the Czech highest competitions series (Czech Cup) participated in testing to determine level of strength, endurance and partly speed assumptions. There were also measured anthropometric parameters (body dimensions and composition) in detail. Testing took place only 5 weeks before NR. The condition indicators were subsequently correlated with the NR performance. For indicators for which significant and at least moderate correlation were found, the possibility of performance prediction was also found. The highest correlations with performance were found in case of on-water sprints: 20m (rs=0,65), 40m (rs=0,86, resp. rs=0,62), 80m (rs=0,58) and 200m (rs=0,795). The on-water sprints are the only indicators, which could be possibly used for the NR performance prediction. In multiple regression of the 2 40m and 1 200m sprints was found high determination...
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