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Physiological differences and potential risks while scuba diving and freediving
Flodr, Tomáš ; Fiala, Miloš (advisor) ; Hošek, Václav (referee)
Title: Physiological differences and potential risks while scuba diving and freediving Objectives: Goal of this study was to prove, whether freedive performed after finished dive using self-contained underwater breathing apparatus, may potentially increase the risk of decompression sickness and afterall put together appropriate principals and guidance for safe combining of both scuba diving and freediving on the same day. Methods: This study used research of local and foreign sources that covered freediving and diving using self-contained underwater breathing apparatus issues. Casual research was also conducted involving 34 participants, all certified self-contained underwater breathing apparatus divers experienced in combining freediving and scuba diving on the same day. Results: Based on the research has been found that a freedive performed after dive using self-contained underwater breathing apparatus may under certain circumstances increase the risk of decompression sickness. Conservative principals and recommendations for safe combining of scuba diving and freediving on the same day were established. Results of this study will be provided to local and foreign diving communities. Keywords: Scuba diving, decompression sickness, nitogen load, freediving, risks
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Dependence oftheair consumption and thepositionofthe body on theselectedmethodofdivingkick and swimming speed
Ehl, Sebastian ; Vondrášek, David (advisor) ; Bačáková, Radka (referee)
Title: Dependence of the air consumption and the position of the body on the selected method of diving kick and swimming speed Objectives: The goal of this work is to find out the relationship between the diver's swimming speed and the air consumption while using two different methods of diving kicks - flutter and frog kick. At the same time, assess the dependence of the position of the body and head on the swimming speed and method of diving kicks. Methods: In this work was used method of collecting data in real conditions by measuring devices and statistical evaluation of collected data. Results: The results are presented by graphs both in the text of this work and in attachment for its large size. The results of all probands are presented in summary graphs and for selected values the degree of association is calculated in tables using the Pearson correlation coefficient. The main result is the confirmation of the reduction of the deviation from the horizontal position when comparing the slow and higher swimming speeds of both flutter and frog kick. The most effective way for a diver to overcome 50 meters below the water surface was determined to be a flutter kick at medium speed (average 0,37 m/s). Keywords: scuba diving, body position, head position, air consumption, speed of swimming, flutter...
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Use of physiotherapy for vertebrogenic difficulties associated with scuba diving
DVOŘÁKOVÁ, Kamila
This work is about using physiotherapy methods in patients with vertebrogenic difficulties associated with scuba diving. The first goal is to suggest therapy for concrete patients with vertebrogenic difficulties and the second goal is to chart the effects of the therapy performed in concrete patients with vertebrogenic difficulties. The work is divided into two parts, theoretical and practical. The theoretical part describes the issue of vertebrogenic difficulties, describes the anatomy and kinesiology of the spine, presents scuba diving and presents the possibilities of using physiotherapy. The practical part consists of four case reports and a description of the proposed therapy. The work is processed in the form of qualitative research. Data collection was performed by the entry and exit examination. The results were based on qualitative analysis of these data. The research group consisted of four probands who spent their free time on scuba diving while suffering from occasional vertebrogenic difficulties. The research took the form of regular meetings, usually held once a week for two months. Therapy results are ambiguous. There were both objective and subjective improvements in two probands. One of the probands did not match the subjective impression with objective results and one of the probands has worsened. Many factors could have affected the results. For example, by an individual approach to therapy, by other sporting activities performed in addition to exercise, or by injuries made during therapy. The theoretical part can be used as a source of information for divers as it highlights the risks of developing vertebrogenic difficulties. The practical part can be beneficial in physiotherapy practice as an exercise unit not only for divers.
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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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Scuba diving technical equipment comparison after year 1950 and comparison with rescue units
Král, Vojtěch ; Vondrášek, David (advisor) ; Bažant, Filip (referee)
Title Scuba diving technical equipment comparison after year 1950 and comparison with rescue units Goals: The main goal of this Bachelor's thesis is to compare the development of a recreational scuba diver's technical equipment after 1950, focusing on the 20th century. The secondary goal is to describe the scuba equipment of an emergency diving unit. Methods: In my Bachelor's thesis, I used both analysis and comparison. I applied the method of analysis in the introduction which consists of an overview of important historical data, personalities which had an impact on the development of scuba diving, and other important data associated with the development of scuba equipment. The main part of the Bachelor's thesis is a comparison of scuba equipment over the individual stages of its development. Results: The significant progress in scuba diving equipment, new materials, and changes in organizational structures seen in the past 50 years have been emphasized in my work.
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Differences in inhalation between men and famales during the identic scuba diving output
Rosenkranzová, Michaela ; Bažant, Filip (advisor) ; Vondrášek, David (referee)
Name: : The difference of consumption of a medium being inhaled between a man and a woman at the same level of endurance in scuba diving. Goals: The primary goal of this work, is to determine if and how is the amount of the inhaled medium depending on the gender of the divers. Compare the consumption between men and women while being faced with the same amount of stress, meaning during a united profile of a dive, try to maximize the decrease of the influence of stress factors. Confirm or deny the hypothesis that men show higher values of the inhaled medium. Methods: The theoretical part of this paper, was created based on the research of the appropriate literature. To obtain all the data, there was used the method of experiments, the results were then analyzed, compared and than statistically evaluated using the Students T- test. Probandi (n=10+10) took part in a 30 minute long and 20 meters deep dive in Bořená hora, during which their consumption of the inhaled medium was recorded every 5 seconds using a special underwater computer with a probe. Results: It was found out that men, during the same dive, consume more air than women because of their higher body weight. Key words: scuba diving, air, sex, respirator, minute ventilation
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The use of full face mask in scuba diving physically handicapped for interruption of the spinal cord
Bytelová, Sophie ; Vondrášek, David (advisor) ; Bažant, Filip (referee)
Title: The use of full face mask in scuba diving physically handicapped for interruption of the spinal cord. Objectives: The aim is to find out if it is possible to use a full face mask during assisted scuba handicapped with the interruption of the spinal cord and to what extent these masks have a positive impact on the safety of scuba diving with an assistant so affected. Methods: Since that the full face masks are used in that way first, was chosen the method experiment in a protected environment with limited water depth of 4 metres. For finding out of contribution in field security then the method of uncontrolled interviews with experts after the experiment itself and of form the test with physically disabled and experts were detected additional information. Results: Full face masks during assisted scuba handicapped with the interruption of the spinal cord can be advantageously used and in the test group had a significant effect on the safety of scuba diving with an assistant so affected. Keywords: Scuba diving, full face masks, physically handicapped with interruption of the spinal cord, quadriplegia, paraplegia.
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Impact of stress situations on heart rate and air consumption under water
Blažek, Dušan ; Fiala, Miloš (advisor) ; Bažant, Filip (referee)
Title: Impact of stress situations on heart rate and air consumption under water Objectives: The aim of this work is to determine context between stress situation at beggining divers, their heart rate and air consumption. Next aim is to evaluate whole measurement and determine the most risky, by us measured factor, according to air consumption . Next important aim is to finde out, how similar are measurmnets of single targets and according to it eventuely determine optimal reccomendation leading to increasing safety of most parcipitators, and invividuals as well. And last not lest goal is conduce to optimal method of psychological ressitance of diver. Methods: In our thesis we used a method of analysis and a method of comparison. We apllied the method of analysis in each individual measurement and the method of comparison in part comparing each measurement together. Results: By measurements was found out, that air consumption is at different stress situations under watter dissimilar. There is also very wild diference between air consumption and heart rate at each specimen.. Like optimal method of psychological resistance of the diver was selected method of combination. Significant stress, was dive itself. The combination consists of training concrete situation and method of general stress handling....
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Impact of stress situations on heart rate and air consumption under water
Blažek, Dušan ; Fiala, Miloš (advisor) ; Bažant, Filip (referee)
Title: Impact of stress situations on heart rate and air consumption under water Objectives: The aim of this labour is to determine relation between air consumption in our selected stress situation. Determinte strongest stress situation from our selection on the base of increase of stress indicators (hpb, minute air consumption). Next aim is to determine context between stress situation at beginning diver, their heart rate and air consumption. Last but not least aim of this labour is to conduce to optimal method and reccomendation related to safety and psychological resistance of the diver. Methods: In our thesis we used a method of analysis and a method of comparison. We apllied the method of analysis in each individual measurement and the method of comparison in part comparing each measurement together. Results: By measurements was found out, that air consumption is at different stress situations under watter dissimilar. There is also very wild diference between air consumption and heart rate at each specimen.. Like optimal method of psychological resistance of the diver was selected method of combination. Significant stress, was dive itself. The combination consists of training concrete situation and method of general stress handling. Keywords: scuba diving, heart rate, air consumption, stress
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Condition development in scuba diving
Matoušek, Radek ; Bažant, Filip (advisor) ; Vondrášek, David (referee)
Title: Fitness training in scuba diving Objectives: The main aim of this bachelor thesis is to describe the fitness training in scuba diving and make a proposal of the training plan. Methods: Literature search and comparison of individual sources. Search and develope the theoretical outputs and then make a training plan. Keywords: Scuba diving, fitness training, dive.
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