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Monitoring of the impact of external load on timing of shoulder girdle muscles during abduction in scapular plane - pilot sEMG study
Knorová, Kateřina ; Čech, Zdeněk (advisor) ; Valouchová, Petra (referee)
Bachelor's thesis "Monitoring of the impact of external load on timing of shoulder girdle muscles during abduction in scapular plane - pilot sEMG study" is focused on the changes of muscle activation pattern in response to increase of strength demands. Theoretical part contains a review on factors influencing the movement outcome and the strength capability of musculoskeletal system. Experimental part is based on pilot sEMG study monitoring the impact of external load on timing of shoulder girdle muscles during abduction in scapular plane. Thirteen subjects (10 females, 3 males) at the age range from 20 to 30 years (median 21 years) were included in this study. The experiment consisted of 3 model situations: A) without external load, B) with light load (1kg) and C) with excess load (3-10kg). All muscles were activated earlier with increasing load. The differences between mean onset times of individual muscles were decreasing with increasing load. Results of this study support the theory of coordination-strength funcional reserve of musculoskeletal system. Discussion summarizes possible consequences and possibilities of using this phenomenon; both in testing, therapy and monitoring its effects.
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Load comparison between different small sided games in young footballers
Hruška, Radek ; Malý, Tomáš (advisor) ; Kokštejn, Jakub (referee)
Title: Comparing the level of load in different types of small football games in young junior category Objectives: The aim of this diploma thesis is to determine the influence of individual variable parameters (goal of the game, involvement of goalkeepers, involvement of jokers, rules) in small football games (SSG) on external and internal load of players in elite players of category under 14. Methods: The research group consisted of 10 players from the U14 category. Data were recorded using GPSports and a Polar T34. Each of compared small games differed in goal, number of players, rules and size of the playing area. During testing, we measured the total distance (m/min), speed (km / h), heart rate (heart rate/min), acceleration and deceleration (m.s-2 ) and high metabolic load distance (m/min) Results: From the results of the work, we confirmed that the individual SSG formats have different effects on the external and internal load of players. Players ran greater total distances in measured position games, than in games with goalkeepers. While the average maximum speed was very similar in all games, in positional games compared to games with goalkeepers, the players measured a higher average speed. The results further show that the external load on the offensive universal was greater than for...
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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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Analysis of voleyball players' movement during the match
Hank, Mikuláš ; Zahálka, František (advisor) ; Vorálek, Rostislav (referee)
The primary task of this thesis was to evaluate, quantify and objectify distances of movement of elite volleyball players in terms of individual game specializations in the horizontal plane of motion. Secondarily, these values were mutually compared. For evaluation was used 3D kinematic motion analysis. Analyzed homogeneous group consisted of senior volleyball players at the Champions League level (n = 14; age = 25 ± 6 years; height = 182.3 ± 6.2 cm; weight = 72.1 ± 5.8 kg). Processing were four sets, a total of 167 rallies. The average distance one player absolved for 167 rally was 1259.89 meters in whole game, per rally, this value was 8.8 m. The movement of players was divided by a total of four directions relative to the volleyball net forward, backward, left and right. The results showed a high degree of homogeneity in the external load players and brought objective values for comparison between the players' specializations. Powered by TCPDF (www.tcpdf.org)
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Monitoring of the impact of external load on timing of shoulder girdle muscles during abduction in scapular plane - pilot sEMG study
Knorová, Kateřina ; Čech, Zdeněk (advisor) ; Valouchová, Petra (referee)
Bachelor's thesis "Monitoring of the impact of external load on timing of shoulder girdle muscles during abduction in scapular plane - pilot sEMG study" is focused on the changes of muscle activation pattern in response to increase of strength demands. Theoretical part contains a review on factors influencing the movement outcome and the strength capability of musculoskeletal system. Experimental part is based on pilot sEMG study monitoring the impact of external load on timing of shoulder girdle muscles during abduction in scapular plane. Thirteen subjects (10 females, 3 males) at the age range from 20 to 30 years (median 21 years) were included in this study. The experiment consisted of 3 model situations: A) without external load, B) with light load (1kg) and C) with excess load (3-10kg). All muscles were activated earlier with increasing load. The differences between mean onset times of individual muscles were decreasing with increasing load. Results of this study support the theory of coordination-strength funcional reserve of musculoskeletal system. Discussion summarizes possible consequences and possibilities of using this phenomenon; both in testing, therapy and monitoring its effects.
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