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Forearm muscle oxygenation during repeated isometric contractions till exhaustion
Hannsmann, Johan ; Baláš, Jiří (advisor) ; Gajdošík, Jan (referee)
Title: Oxygenation of forearm muscles during repeated isometric contraction until complete exhaustion in a group of climbers. Objectives: The aim of this work is to compare tissue oxygenation of finger flexors during repeated intermittent contractions until exhaustion in a group of sport climbers. Methods: Research was made on a sample consisting of 15 men and 14 women. Climbers were tested in 3 stress parts with 20 minutes of passive rest. The stress part consisted of intermittent isometric contraction 8s:2s on 60% MVC (Maximum voluntary contraction), until exhaustion. O2 kinetics in flexor digitorum profundus (FDP) and executed work and time of exercise was measured during the whole experiment with near infra-red spectroscopy (NIRS) and custom made dynamometer. Results: Average amount of tissue saturation was around 59% before test. During exercise was minimal saturation around 35%. During rest periods was average around 62% with maximum at 82%. During contraction was deoxygenation around 8,8% in average and it didn't depend on sex or preferences of climbing discipline. Conclusion: During intermittent performance aimed on finger flexors at 60% MVC was decline of tissue saturation 24% in average. Process of deoxygenation and reoxygenation has almost no differences between sex, neither between lead...
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The evaluation of methodology on pull up test as a test of maximum strength of Czech soldiars
Kouřil, František ; Šťastný, Petr (advisor) ; Petr, Miroslav (referee)
Titel: The evaluation of different test protocol of pull up exercise as a maximum strenth test in Czech Republic soldiers Goals: The aim of this study is to compare different methodological ways during pull up exercise as a test of uper externities and back maximum strenght. And to assesed which load to use in case of test reason. Ant find out, what influence has the soldiers equipment on strenght test. Method: The study is based on an experiment consisting in the performance of different testing protocols, the same group of probands and subsequent comparison probands ordinal position in selected test methodologies. Selected tests, the maximum number of pull-ups with their own weight, the maximum number of pull-ups with essential military equipment (15 kg), the maximum number of pull-ups with 40% of your own body weight, the maximum load lifted in pull up excercise and the absolute pull up, which was calculated on the maximum load lifted . Use was basic statistics and serial correlation by Kendall correlation coefficient. Results: Test with military equipment (load weighing 15 kg) correlated with the test pull up with its own body weight value τr = 0.83 for statistical significance level α = 0.05. Test the pull up with 40% correlated with test pull up with their own body weight value τr = 0.72, for...
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Forearm muscle oxygenation during repeated isometric contractions till exhaustion
Hannsmann, Johan ; Baláš, Jiří (advisor) ; Gajdošík, Jan (referee)
Title: Oxygenation of forearm muscles during repeated isometric contraction until complete exhaustion in a group of climbers. Objectives: The aim of this work is to compare tissue oxygenation of finger flexors during repeated intermittent contractions until exhaustion in a group of sport climbers. Methods: Research was made on a sample consisting of 15 men and 14 women. Climbers were tested in 3 stress parts with 20 minutes of passive rest. The stress part consisted of intermittent isometric contraction 8s:2s on 60% MVC (Maximum voluntary contraction), until exhaustion. O2 kinetics in flexor digitorum profundus (FDP) and executed work and time of exercise was measured during the whole experiment with near infra-red spectroscopy (NIRS) and custom made dynamometer. Results: Average amount of tissue saturation was around 59% before test. During exercise was minimal saturation around 35%. During rest periods was average around 62% with maximum at 82%. During contraction was deoxygenation around 8,8% in average and it didn't depend on sex or preferences of climbing discipline. Conclusion: During intermittent performance aimed on finger flexors at 60% MVC was decline of tissue saturation 24% in average. Process of deoxygenation and reoxygenation has almost no differences between sex, neither between lead...
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Comparison of agility and leg press maximum strength in adolescent soccer players
Nápravník, Pavel ; Šťastný, Petr (advisor) ; Kokštejn, Jakub (referee)
Title: Comparison of the level of agility with maximum force of the lower limbs, measured by using a leg press, for players of football in junior category. Objectives: Comparison of maximum strength of lower limbs measured by the leg press with the performance in agility. Comparison of maximum strength of lower limbs measured by the leg press with performances in the short sprints. Comparison between the individual sprints. Method: The group consisted of 66 measured players aged 15 - 19 years old. The players passed the test throughout the day including the battery tests tanity (height, weight, amount of fat, amount of muscle mass, bone mass, metabolic age, BMI, protein expressed in kilograms, TBW, ICW, ECW, BMR, visceral fat, segmental analysis-muscle mass in kilograms, fat percentage and phase angles-segmental), stability, handgrip (dominant limb + performance), long jump one foot, agility (Arrowhead R and L , Illinois, K-test, Hexagon, 505 R and L), linear speed (5, 10, 20 m run and 20 m flying run), the maximum force of the lower limbs (leg press), anthropometry (the length and width of each of the segments, the fold of skin, the circumference of the thighs, calves and ankles), SJ, Plyo-6 hops, CMJ- free arms, CMJ- fixed arms, Cybex. From this test battery was used data from tests linear speed,...
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The evaluation of methodology on pull up test as a test of maximum strength of Czech soldiars
Kouřil, František ; Šťastný, Petr (advisor) ; Petr, Miroslav (referee)
Titel: The evaluation of different test protocol of pull up exercise as a maximum strenth test in Czech Republic soldiers Goals: The aim of this study is to compare different methodological ways during pull up exercise as a test of uper externities and back maximum strenght. And to assesed which load to use in case of test reason. Ant find out, what influence has the soldiers equipment on strenght test. Method: The study is based on an experiment consisting in the performance of different testing protocols, the same group of probands and subsequent comparison probands ordinal position in selected test methodologies. Selected tests, the maximum number of pull-ups with their own weight, the maximum number of pull-ups with essential military equipment (15 kg), the maximum number of pull-ups with 40% of your own body weight, the maximum load lifted in pull up excercise and the absolute pull up, which was calculated on the maximum load lifted . Use was basic statistics and serial correlation by Kendall correlation coefficient. Results: Test with military equipment (load weighing 15 kg) correlated with the test pull up with its own body weight value τr = 0.83 for statistical significance level α = 0.05. Test the pull up with 40% correlated with test pull up with their own body weight value τr = 0.72, for...
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