|
|
Effect of cold water immersion on intermittent isometric forearm flexor contractions to failure in rock climbers
Kodejška, Jan ; Baláš, Jiří (advisor) ; Stejskal, Pavel (referee) ; Radvanský, Jiří (referee)
Title: Effect of cold water immersion on intermittent isometric forearm flexor contractions to failure in rock climbers Objectives: The aim of this study was to determine the effect of cold water immersion on intermittent isometric forearm flexor contraction to failure in rock climbers. Methods: Thirty-two climbers (15 male and 17 female) completed three intermittent trials to failure, on a climbing-specific handgrip dynamometer, on three separate visits to the laboratory. For each visit a different recovery strategy was employed: passive recovery (PAS), cold water immersion at 8 řC (CWI 8) or 15 řC (CWI 15). The force time integral (FTI - time of contraction multiplied by the force of contraction) was determined to assess intermittent performance. The tissue saturation index (TSI) and total haemoglobin (tHb) during isometric contractions from near-infrared spectroscopy (NIRS) were determined to assess hemodynamic changes. Differences between repeated trials and three recovery protocols, derived parameters NIRS, were assessed using repeated measures ANOVA with Bonferroni corrections. Results: There was no significant difference between conditions after trial one. In response to the PAS recovery condition there was a 10% and 22% decrease in FTI in the second and third trials, respectively. The PAS...
|
|
|
The Influence of SASA Group on the Treatment and Integration of the Rape Trauma
Brichcínová, Ludmila ; Čihánková, Ivana (advisor) ; Klvačová, Petra (referee)
This thesis Influence of SASA group on treatment and integration of rape trauma deals with specific contributions of self-help group seen from the viewpoint of its members as it brings healing to their experience with sexual abuse. The work can be helpful for people, who personally experienced sexual abuse or rape or other kinds of sexual assaults and also for people, who are dealing with such a victim personally or proffessionally. The goal of the thesis is to view the healing aspects of the SASA group contributing to recovery from rape - what specifially helps and thanks to what factors. It also shows what obstacles the group can bring about and how its members deal with a concept of 12 steps. Theoretical part explains basic terms and up-to-date situation in the matter. In a nutshell it shows posttraumatic experience of the rape victim in feelings, behavior and needs. It looks upon the trauma how it results in the mental state. Also it shows the self-help groups phenomenon and its role in the system of help as a complementary human care possiblity describing particularities of a specific spiritual self-help SASA group (Sexual Assault Survival Anonymous) based on 12 steps program inspired by Alcoholic Anonymous. Practical part shows data confirming the goals of the work gained by qualitative...
|
|
| |
|
|
Recrystallization study of free-cutting steel by in-situ SEM/EBSD technique
Babinský, Tomáš ; Němec, Karel (referee) ; Petrenec, Martin (advisor)
Placing recrystallization annealing in a manufacturing proces is often necessary in order to restore plasticity of worked blanks right before working products to its final shape. For better understanding of processes which are taking place in a material during annealing the use of in-situ techniques is favorable. Such observations enable us to watch changes in the materiál in real time at the original spot. Observations at grain-level are ideally made with scanning electron microscope – SEM by electron back-scattered diffraction – EBSD. The technique makes watching nucleation, growth and potential coarsening of recrystallized grains possible. Special construction of a tensile stage allows us to watch changes of a sample during tensile tests which can be used in observing influence of MnS inclusions on plasticity of free-cutting steels. Materials studied in this work are commonly used free-cutting steel 11SMnPb30 and its lead-free alternative 11SMnBi30.
|
|
|
The use of regeneration of the cold water in the swimming training
Uhrová, Denisa ; Chrzanowská, Babeta (advisor) ; Jurák, Daniel (referee)
Title: Use of the cold water regeneration in swimming training. Objectives: The aim of the thesis is to find out whether the cold water regeneration is used in training process by swimming clubs of the Czech Republic. Methods: The research was implemented through the questionnaire method. The data collection was carried out within the Czech Republic's swimming clubs registered under the Czech Association of Swimming Sports. The mathematical - statistical method was used to process acquired data. Visual and tabular representations were used to facilitate their visual analysis and overall assessment. Results: The results of the questionnaire method indicated how the cold water regeneration is used by swimming clubs of the Czech Republic. It has been found that swimming coaches in the Czech Republic use cold water regeneration to a minimum. It has been confirmed that the reason is low awareness of the regeneration method. Another reason was the inadequacy of the demonstrable effects of a given regeneration method for swimming. The noticeable value of the results was reduced by low returns of the questionnaires. Keywords: Swimming training, recovery, cold water, regeneration.
|
|
|
Oracle database systems administration
Šilhavý, Dominik ; Pour, Jan (advisor) ; Štalmach, Tomáš (referee)
Master's thesis with the name Oracle database systems administration describes problems in databases and how to solve them, which is important for database administrators. It helps them in delivering faster solutions without the need to look for or figure out solutions on their own. Thesis describes database backup and recovery methods that are closely related to problems solutions. The main goal is to provide guidance and recommendations regarding database troubles and how to solve them. It is shown, how to interconnect these methods with database backup and recovery. Targets were reached by backup methods analysis, real word problems simulations and resolutions were shown as well. The main contributions are practical examples of real word issues, which can be faced by database administrator, including different ways how to solve them. Thesis contains materials and based on them an administrator can decide for the best suited backup and recovery configuration and strategy in a company. Another important contribution was a creation of knowledge objects on mbi.vse.cz. Thesis is separated into three logical units. First six chapters delimit thesis borders, contain bibliography research and introduce into Oracle database issues, including methods for database backup and recovery. Second practical part aims at backup and recovery analysis and includes database troubles simulation and their resolutions. The last part is dedicated to knowledge objects on mbi.vse.cz.
|
|
|
Zooplankton response to a change of water chemistry and amount of food during the recovery of lakes from acidification
Bartošíková, Martina ; Stuchlík, Evžen (advisor) ; Šorf, Michal (referee)
Anthropogenic acidification has affected assemblages in thousands of lakes in North America and Europe. It turned out that, during the acidification, the number of zooplankton changed and also the species composition of their assemblages, at some sites there was also the total disappearance. The main reason was a decrease of pH, wash out toxic aluminium and a change of trophic status. The rate and extent of biological recovery after restoring the pH in acidified lakes varies considerably across regions. Recovery of aquatic communities is significantly lagging behind the recovery in chemistry. Some zooplankton species are nonetheless able to quickly colonize recuperating ecosystems and in many acidified lakes again started to appear native species that have disappeared during acidification. The return of indigenous species, however, can be blocked acid-tolerant occurrence of species after species extinct occupied empty niches. Zooplankton can be affected by water chemistry directly, but also indirectly by the quality and quantity of food. An important factor is the possible spread of colonizing species. However, the relative roles of these factors in regulating recovery may be difficult to determine. Key words: zooplankton, acidification, water chemistry, aluminium toxicity, phytoplankton
|
|
|
Effect of water temperature on the recovery during repeated isometric performance
Škoda, Jan ; Baláš, Jiří (advisor) ; Hojka, Vladimír (referee)
Title: The influence of water temperature on the rate of recovery during repeated isometric exercise. Objectives: The aim of this thesis is to assess the effect of water temperature on immersion of forearm to water for the sake of speeding up the recovery process during repeated isometric performance. Methods: Five male subjects from the students of FTVS (average age 22 ± 3 years) underwent three meaurements with repeated exercise to exhaustion with various kinds of rest periods. The exercise was represented by three series of intermittent isometric contraction of the finger flexors until exhaustion with 20 minutes rest period. The rest period was represented by the immersion of forearm into cold water (8řC; 15řC;) as well as by a passive rest. Sturation O2 of saturated hemoglobin (SmO2) was monitored by the spectrometer throughout the entire measurements at flexor digitorum profundus. Results: The reliability of measurements was rel=0,79 with standard deviation SD= 27,3s and standard measurement error SEM= 12,5s. The least effective method of recovery was passive recovery. Decrease in the time between the first, second and third contraction respectively was 35s, 34s respectively. Immersion in 15 ř C water under recovery phase led to improvement in the second contraction by 43s and by 27s in the...
|
|
|
Effect of the load and recovery time on a physiological response in sport rock climbers
Šimkanin, Martin ; Baláš, Jiří (advisor) ; Vomáčko, Ladislav (referee)
Title: Effect of the load and recovery time on a physiological response in sport rock climbers Objectives: The main purpose of this study was to assess the inluence of various types of climbing loads on a physiological response in sport rock climbers. Methods: Seven experienced (8 to 9+, UIAA - Union Internationale des Associations d'Alpinisme) sport climbers (age 25,4 ± 7 years, body 64,8 ± 6 kg, height 175,8 ± 5,3 cm) were subjected to climbing test until exhaustion, which involved three excercises that included various types of load: continuous, intermittent with 30s load and 30s rest periods (test 30/30) and intermittent with 90s load and 90s rest periods (test 90/90). All subjects refrained from exercising at least 48h between each testing. The monitored variables were performance of climbing steps, heart rate (HR), oxygen consumption (VO2), minute ventilation (VE), energy expenditure (EE) and blood lactate (LA). Results: Peak values of monitored variables show that a climbing intensity was similar among all tests (HRpeak 168 ± 11 to 172 ± 7 bites/min, VO2peak 35,2 ± 4,7 to 40,3 ± 5,3 ml/kg/min, LA 4,1 ± 1,1 to 4,9 ± 1,4 mmol/l). EE was in average 9,0 to 9,8 kcal. Subjects climbed longest (4min 45s ± 37s) in the test 30/30 (six climbers achieved maximum defined time 10 x 30s), whereas total...
|
|
|
Effect of two active recovery methods on repeated bouts of finger flexor isometric performance
Psohlavec, Lukáš ; Baláš, Jiří (advisor) ; Malý, Tomáš (referee)
Title: Effect of two active recovery methods on repeated bout of finger flexors isometric performance. Goals: Compare two methods of active recovery - global and local, during repeated isometric performance and learn the difference between active and passive recovery. Method: Ten recreational athletes in average age 30,4 ± 5,9 years performed in a random cross-over desing 3 sessions with 3 repeated isometric intermittent contraction. The effect of active global recovery, active local recovery and passive recovery between repetions was monitored. Results: More effective type of recovery was active recovery. There was no difference between both active recovery methods. Performed decrease in active global recovery was activleast effective method of recovery was passive recovery. Decrease in the time in active global recovery was 21,7s (29,77%) and in active local recovery 20,8s (30,1%). The least effective was passive recovery. There was decrease 24,6s (35,34%). Key words: recovery, active recovery, local recovery, finger flexors, interrmitent, isometric contraction.
|
guest ::
