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Utilization of lactate during exercise in the context of genetic dispositions
Vostatková, Pavlína ; Petr, Miroslav (advisor) ; Heller, Jan (referee) ; Balkó, Štefan (referee)
Title: Utilization of lactate during exercise in the context of genetic dispositions Objectives: The aim of the dissertation is to investigate, within a group of athletes from speed- endurance disciplines, the influence of selected polymorphisms in genes encoding lactate transporters MCT1-4 on lactate levels before, during, and after Intermittent 30s Wingate Test. A sub-objective of the study is to identify differences in allele and genotype frequencies in the respective polymorphisms between the group of athletes and controls. Methods: The research group consisted of 91 Eastern European Caucasian men, members of the Czech Athletic Association with elite performance in the 400 m run (age 20.4 ± 3.2 years; body weight 74.07 ± 7.5 kg; height 182.7 ± 6.14 cm). A control group (n=100; age 20.5 ± 1.2; body mass 77.5 ± 9.47 kg; height 181.5 ± 6.35 cm) of physically active individuals who did not perform speed and strength sports was used for allele and genotype comparisons. For genotypic analysis of selected polymorphisms, buccal mucosa swabs were performed in the probands. DNA isolation and subsequent genetic analyses were performed in collaboration with the Józef Piłsudski University of Physical Education in Warsaw. The frequencies of individual alleles and genotypes were tested for compliance with...
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Influence of a performance level of fencers on reaction time and actvation of selected muscels during a lunge
Balkó, Štefan ; Hendl, Jan (advisor) ; Havel, Zdeněk (referee) ; Šimonek, Jaromír (referee)
Title Influence of a performance level of fencers on reaction time and activation of selected muscles during a lunge. Problem The motion efficiency of offensive or defensive actions implemented during the match of fencing is related to the consolidation of movement patterns in the CNS through the training proces and competition situations. In this regard, muscle activation during a lunge, which is the most common form of attack, may be important for the resulting performance of fencers. The attack during a match is usually initiated by the occurrence of visual stimuli (eg. opponent's arm movement). Throughout the training proces and practise, in which are the given model situations repeated, occurs a creation of a specific purpose motion program stored in memory. Fencers are during the match often exposed to situations where they have to respond simultaneously to multiple stimuli that have to be adequately evaluated. The appropriate response may be associated with the movement or ignorance of stimuli, therefore will this work also deal with the level of complex reaction time. When measuring complex reaction time so-called "additional" stimulation will be used, it is increasing the number of stimuli, but should not lead to physical reaction of the fencer. The results of the present work related to...
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Influence of a performance level of fencers on reaction time and actvation of selected muscels during a lunge
Balkó, Štefan ; Hendl, Jan (advisor) ; Havel, Zdeněk (referee) ; Šimonek, Jaromír (referee)
Title Influence of a performance level of fencers on reaction time and activation of selected muscles during a lunge. Problem The motion efficiency of offensive or defensive actions implemented during the match of fencing is related to the consolidation of movement patterns in the CNS through the training proces and competition situations. In this regard, muscle activation during a lunge, which is the most common form of attack, may be important for the resulting performance of fencers. The attack during a match is usually initiated by the occurrence of visual stimuli (eg. opponent's arm movement). Throughout the training proces and practise, in which are the given model situations repeated, occurs a creation of a specific purpose motion program stored in memory. Fencers are during the match often exposed to situations where they have to respond simultaneously to multiple stimuli that have to be adequately evaluated. The appropriate response may be associated with the movement or ignorance of stimuli, therefore will this work also deal with the level of complex reaction time. When measuring complex reaction time so-called "additional" stimulation will be used, it is increasing the number of stimuli, but should not lead to physical reaction of the fencer. The results of the present work related to...
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