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Rescue options in rope coures park
Jelen, Martin ; Vomáčko, Ladislav (advisor) ; Vondrášek, David (referee)
Title: Rescue options in rope coures park Objectives: The goals of these bachelor essay are to describe the procedures and equipment used for rescue in rope parks. To create and test 5 rescue systems that are used to rescue by launching. Assessing these systems in terms of complexity of use, cost, severity of rescuer strength and rescue speed when using the system. Methods: The methods used during the creation of our work were the first to collect data from Czech and world literature and the experience of experts from areas that are concerned with rescue from a height. We used the informations to design rescue systems that we have measured and tested. Results: The result of the work is the recommendation the rescue systém D, that according to these aspects is ideal for everyday use in the rescue by launching in rope park. Keywords: rope park, rescue systems, rescue, launching,
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Object reproduction with using 3D printing in the hyperbaric environment
Kadlec, Martin ; Vondrášek, David (advisor) ; Dvorský, Jaroslav (referee)
Title: Object reproduction by 3D printing in the hyperbaric environment. Objectives: The bachelor thesis is designed as pilot study examining "Object reproduction by 3D printing in the hyperbaric environment". Its aim is mainly to acquire sufficient knowledge as precursor to further research in this field. Methods: Data was organized into tables and charts (based on proprietary test results). Descriptive methods and inferential statistics (T-test) were used to determine hypothesis. Results: T-test did not determine a statistically significant difference in weight (p = 0.98026) between objects printed at atmospheric pressure (101,7 kPa ± 2 kPa) and objects printed at absolute pressure of 150 kPa ± 3,6 kPa. The weight difference of compared build sets was well within substantive significance threshold limit ≤ 5 %, <0,35 % - 4,37%>. All objects (build sets n1 = 10; n2 = 10) did meet the required criteria in proprietary functionality test, therefore we can assume that fairly affordable 3D printer will be capable of printing in hyperbaric environment ( ≥ 150kPa ± 3,6 kPa) and objects will be able to fulfill their main purpose as well. Even though the results are meaningful, further research is needed. Keywords: 3D printing, 3D digitization, hyperbaric environment, 3D printing in the unusual environment
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Analysis of fatal accidents in the Czech Republic during scuba diving from 1997 to present
Kleinová, Karolína ; Vondrášek, David (advisor) ; Dvorský, Jaroslav (referee)
Title: Analysis of fatal accidents in the Czech Republic during scuba diving from 1997 to present Objectives: The aim of the thesis is to collect and analyze information about fatal accidents in scuba diving, which took place since 1997 to the present on the territory of the Czech Republic, to highlight their possible causes and common denominators. Another aim is to point out causal connection of factors leading to the deaths of divers through case studies of a few selected accidents. Methods: To meet the objectives of the work was used both quantitative and qualitative approach. In the quantitative part of the work were used data collections and analysis of information about the investigated accidents. In the next part of the thesis were used qualitative analysis of selected expert opinions received from expert in the field of diving. Results: The most frequent disabling injury in observed cases is a barotrauma and the most frequent cause of death is a suffocation caused by drowning . An important discovery is frequent neglecting of safety policy and overrating self capability in connection with the level of competence and experience. Keywords: diving, fatal accidents, risk factors
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Diving units at an IRS components their activities and tasks
Szatmari, Daniel ; Vondrášek, David (advisor) ; Fiala, Miloš (referee)
Title Diving units at an IRS components their activities and tasks Objectives The aim of this work is to describe the diving activities of the units of the Integrated Rescue System focusing on the diving units of the Fire Brigade of the Czech Republic and the Police of the Czech Republic. Specifically, their organization, structure and implementation of the diving activities of individual units. Methods The method used in this thesis is to analyze the widest range of literature focusing on this issue and the subsequent learning of information from selected sources. Results Overview of the current state of dive activities of diving units in an integrated rescue system Key words Integrated rescue system, diving, diving units
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Effect of hyperbaric environment on fine motor skills
Les, Martin ; Vondrášek, David (advisor) ; Dvorský, Jaroslav (referee)
Title: Effect of hyperbaric environment on fine motor skills Objectives: The aim of study is to assess the changes fine motor skills due to hyperbaric environment in preparation for selected tests of fine motor skills. Methods: The first method was used empirically - research. Then the method chosen of compilation of the information obtained. The basic method to work was the experimental measurement method specially constructed tests on fine motor skills. All measured values were statistically processed as follows. Results: The results were formulated as a percentage, graphs and tables. Recording was carried out by recording the time data. Their percentage of the overall approach to the exercise time mastering fine motor skills in different environments. All results obtained were processed and evaluated. Keywords: depth intoxication, fine motor skills, hyperbaric environment, hyperbaric chambers, diving
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The influence of barefoot running on running kinetics
Bezemek, Denis ; Lopot, František (advisor) ; Vondrášek, David (referee)
Title: The influence of barefoot running on running kinetics. Objectives: The aim of this work is to assess the influence of different footwear (regular running shoes, barefoot footwear and barefoot running) on footstrike (rear-foot strike, mid-foot strike and fore-foot strike) during running and evaluate the action of reaction forces in different types of footstrike. Methods: In this study participated 11 runners (only men), who were divided in three groups based on their preferred footwear. Kinetic data (reaction forces) were collected by using a Kistler force plate, which was crossed by the participants with subjectively chosen speed. Kinematic parameters of running (speed) and video recordings of a single footstrikes were obtained by using a Qualisys system of optoelectronic stereophotogrammetry. All the measurements occurred during one day. Collected data were exported to Microsoft Excel 2013 programme, where the graphs of reaction forces were created and to Qualisys Track Manager software. Assessment was based on created graphs and video recordings. Results: The results show that runners wearing regular running shoes preferred a rear- foot strike, while among runners in barefoot footwear a fore-foot strike than mid-foot strike prevailed a bit. Among barefoot runners dominated a fore-foot...
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Influence of temperature on the diving reflex
Soustružník, Ondřej ; Vondrášek, David (advisor) ; Bažant, Filip (referee)
Title: Influence of temperature on the diving reflex Background: It is likely that the sum of the defense systems of the organism to changes in temperature known as the diving reflex occurs in each individual differently depending on the physical preparedness. Objectives: Check the effect of temperature on performance-diving reflex two different groups - experienced and novice divers. On the basis of experimental testing in hot and cold water, check the reaction of the body to different environmental conditions. Based on the physiological changes in an organism to assess whether it was demonstrated physiological ability of the body, known as the diving reflex. Methods: Experimental testing beginner diver (n = 5) experienced divers (n = 5) in hot water of temperature 20 - 25 ř C and cold water at a temperature of 4-6 ř C in the static apnea. Based on the measured values, changes in the body, heart rate, oxygen saturation, the overriding influence of sympathetic and parasympathetic, concentration and relaxation index to assess the extent of reaction of the organism and the subsequent involvement of the defense systems of the organism, as called diving reflex. To assess the difference between groups were used statistical methods - Cohen da Kolmogorov-Smirnův test. Results: The results of experiments...
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Involvement of muscle groups during specific ways of movement beneath the water scurface
Matoušek, Radek ; Vondrášek, David (advisor) ; Bažant, Filip (referee)
Title: Involvement of muscle groups during specific ways of movement beneath the water surface Objectives:. The aim of the thesis is to find that selected muscle groups or leg muscles most involved in locomotion at specific ways to move the scuba diver under the water surface and also to compare the percentage of one intermeshing cycle are active muscles being measured, and what percentage of their involvement they vary from specific movements during the water surface. Method: The research was conducted by monitoring surface EMG measurements. The research group consists of five experienced scuba divers. Results are interpreted using tables and bar graphs using the functions in Excel. Results: The results show that most wiring muscles in modified breaststroke kick are rectus femoris (proband 1, 2), m. biceps femoris (proband 2, 4) and gluteus maximus (proband 3, 5). When freestyle kick It is vastus lateralis (proband 3, 4, 5). In Table 4, can be traced, the percentage of one intermeshing cycle will involve more muscles, and whether it was in freestyle kick and modified breaststroke kick. It is here to find some interindividual tendency as in Table 5 and Table 6, which show the percentage when the muscle enters into engagement cycle and terminating its activity in meshing cycle. Keywords: water,...
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Anaylisis of the paragliding rescue parachute opening
Vinš, Jiří ; Dvorský, Jaroslav (advisor) ; Vondrášek, David (referee)
Theme: Anaylisis of the paragliding rescue parachute opening Aims: To contribute safety in paragliding comunity by comparing rescue parachute speed openings.We will test different types and brands and focus mainly on speed of openings from the time of deployment to fully inflated rescue parachute. We will try to simulate it as close to the real situations as possible. Methodology: For our test we used a swing bridge where we attachad a rope. Pilot would always swing on the rope and deploy the rescue parachute. Each test was recorded on the camera so we could evaulate the speed of openings and stability. Each test was split in to 5 parts - drop in (rebound), swing, dead point (stall point), deployment, mening. Another method was experimental personality characteristics of the person conducting the investigation. Results: Results : After full analysis of the survey we found that a main factor of the reserve opening is the pilot as the direction and the strenght of the throw are the key factors for the reserve to open.Fastest open parachute in our test was cirus delta it opened in 3.17 seconds from the start of throw to open. Key words: paragliding, speed, rescue parachute, process of opening
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Method of Diver Rescue - Audiovisual Records
Haloun, Tomáš ; Vondrášek, David (advisor) ; Bažant, Filip (referee)
Title: Method of Diver Rescue- Audiovisual Records Objective: The aim of this paper is to create a complex audiovisual record describing practical steps to help and rescue a diver underwater. Methods: As the formulation of the title implicates, for fulfilling the paper objective, themethod of recording was selected. By the means of this method an audiovisual record was obtained, which was subsequently edited and supplemented with an audio commentary. While recording methods of simulation were used.The paper is initiated by theoretical part which was completed by methods of gathering, analysis and synthesis of data and which summarizes key information important for gaining deeper understanding of the problematics. Results: Instructional video was successfully recorded. After editing the final record takes 14 minutes and 35 seconds and includes all expected parts. Key words: Scuba diving, rescuing and helping a diver, diving signals, safety, prevention
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