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Quantification of plantar pressure distribution and geometry of forefoot according to the character of shoes
Mojcherová, Andrea ; Jelen, Karel (advisor) ; Tlapáková, Eva (referee)
Title: Quantification of plantar pressure distribution and geometry of forefoot according to the character of shoes Objectives: The main purpose of this thesis is to describe and verify the changes in the sole of the foot according to the style of shoe which are manifested by changes in the values of the maximum pressure, contact area, contact time and changes in pressure time integral. The next object is to verify the changes in forefoot geometry according to the style of shoes. Methodology: The sample consisted of 6 healthy women of average age 25 ± 1 year. All study participants reported wearing high-heeled shoes occasionally which means not more than twice per week. The measurement was realized with the Pedar-X in-shoe pressure measurement system (Novel) and motion capture system Qualisys. Results were analysed statistically using Wilcoxon test. Statistical significance was set at p < 0,05. Results: From the received data we could find out the changes that footwear causes in healthy people. The findings of this study indicate that the use of different style of shoes affect all measured parameters such as maximum pressure, contact area, contact time and pressure time integral.From the experiment evaluation, it is clear that the style of shoes may also affect the geometry of forefoot. Keywords:...
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The analysis of pressure distribution over the sole while standing and walking in heel spur patients, prior to therapy and following shock wave treatment
Komendová, Radka ; Jelen, Karel (advisor) ; Dyrhonová, Olga (referee)
The thesis "Analysis of the distribution of the sole pressures in standing position and in walking of person s with the diagnosis of calcar calcanei before and after extracorporeal shock wave therapy" is a theoretical-empirical case study. The theoretical part deals with kinesiology and function of foot, furthermore it attends to postural stability system, control, analysis of physiological walk and plantar distribution of pressures in standing position and in walk. Also, findings about heel spur and its treatment possibilities are worked up. The theoretical part ends with the summary of findings about extracorporeal shock wave therapy, advantages and disadvantages, indications and contraindications. The empirical part of the thesis is concemed with verifying the influence of extracorporeal shock wave therapy to standing position and walk of patients with the diagnosis calcar calcanei. The main object of the research was observing changes in the distribution of the sole pressures in standing position and walk of the patients with heel spur before and after extracorporeal shock wave herapy. Powered by TCPDF (www.tcpdf.org)
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The Dynamic of Choice Biomechanics Characteristics of the Gait of Pregnant Women
Jirušová, Gabriela ; Jelen, Karel (advisor) ; Tlapáková, Eva (referee)
The dynamic of choice biomechanics characterizations of the gait of pregnant women The aim of the study: The aim of this thesis is to detect, which way do change specifics of the gait of pregnant women during 1st, 2nd and 3rd trimester of the pregnancy in consequence of biochemical and biomechanics changes occurring during the pregnancy, and to find prospective common trends of this alternations. Method: The thesis has a character of an experimental study. It is compiled as a casuistic study. Non-homogeneous group of 6 healthy pregnant women - volunteers took part in this study. It was performed a free-dimensional gait analysis on each subject using Qualisys system, that makes it possible to observe trajectories of markers placed on the body, and ground reaction forces in the stance phase of walking were taken using dynamometric plates Kistler. It was conducted at the end of the each trimester, it means at 14th, 26th and 38th week of the pregnancy. It was observed the width of supporting base, timing of the gait; it means time of separate phases of gait and ground reaction forces acting vertically and anteroposteriorly. It was so calculated impulses of these forces and velocity of the gait. Results: Ground reaction forces acting vertically and anteroposteriorly and impulses of these forces increase during...
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Quantifying aspects of orthosis in relation to ankle sprain
Znášiková, Ivona ; Jelen, Karel (advisor) ; Kubový, Petr (referee)
Title: Quantifying aspects of orthosis in relation to ankle sprain Objectives: To detect whether various types of ankle bracing affect dynamic postural stability. Investigation of attenuation of vertical forces in different conditions. To determine range of motion for each orthosis. Methods: Monitoring of dynamic variables by piezoelectric measuring device - Kistler recording of dynamic changes. Mathematical modeling of damping characteristics and detected variables. Measuring of range of motion by goniometer with and without orthosis. Results: Results suggest, that bracing conditions have an effect on dynamic postural stability and orthosis limit range of motion. Attenuation of vertical forces is affected by using orthosis. Keywords: ankle instability, orthosis, mathematical modeling, stabilization
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Effect of prophylactic and functional knee brace and knee sleeve on plantar pressure distribution during stance phase of gait in healthy individuals
Pánková, Barbora ; Jelen, Karel (advisor) ; Lopot, František (referee)
Title: Effect of prophylactic and functional knee brace and knee sleeve on plantar pressure distribution during stance phase of gait in healthy individuals Summary: Knee bracing is a very commonly used method by both doctors and patients. Brace producers and also most of the studies focus the effect of the brace directly on the knee joint, but do not study, how it influences other regions of human body. This work studied the influence of knee bracing on plantar pressure distribution changes and also changes of the progression of the centre of pressure (COP). This study rewiewed the literature for the theoretical background in biomechanics and kinesiology of gait, description of structural, functional and methodological factors influencing the dynamic interaction of the foot contacting the ground and a review of knee brace questions. The experimental part concerns a study of the gait of 6 healthy subjects using a Footscan platform and the effects of three types of knee braces on the dynamic interaction of the foot contacting the ground. Methods: We used the Footscan modular measuring system (RSscan International, Belgium) and the force platform Kistler to detect both relative and absolute values of forces and plantar pressures under particular regions of the foot using three types of knee braces....
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The effect of intensity of voluntary isometric contraction on rheological characteristics of skeletal muscle tissue in vivo, in situ
Kopecká, Barbora ; Bittner, Václav (advisor) ; Jelen, Karel (referee)
Title: The effect of intensity of voluntary isometric contraction on rheological characteristics of skeletal muscle tissue in vivo, in situ Objectives: The main aim of this study is to determine the effect of intensity of isometric voluntary contraction of skeletal muscle on its viscoelastic characteristics. The work also aims to contribute to the verification of myotonometer as an objective diagnostic instrument and compares it to known methods for evaluation of muscle tone, or its partial characteristics. Methods: We used myotonometer - utility model 29456 for evaluation of changes of stiffness and viscous behavior of skeletal muscle in vivo, in situ in 20 healthy volunteers. The values were compared during 0%, 20%, 35% and 50% of maximal strength of isometric contraction of finger flexors, controlled by hand-held dynamometer. Results: We concluded that both stiffness and viscous behavior of skeletal muscle increases with higher intensity of isometric voluntary contraction. Keywords: myotonometer, skeletal muscle, viscous behavior, stiffness, muscle tone
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Load Monotony, Movement Deprivation and their Consequences to Pregnant and Non- Pregnant Drivers
Rampasová, Monika ; Jelen, Karel (advisor) ; Kubový, Petr (referee)
Aims: To implement laboratory measurement and determine consequences of monotony and movement deprivation on drivers in late pregnancy through the use of subjective and objective indicators. To implement the same experiment to non- pregnant woman. To compare results of these groups. Methods: Measurement of reaction times was realized on car simulator OCTAVIA 2. Application of subjective discomfort questionnaire and modified test POMS. Results: There was documented influence on actual mental condition and perception of discomfort to pregnant and non- pregnant drivers during driving. There were larger changes in results of pregnant drivers. Dependence between subjective and objective indicators wasn't found. Key words: monotony, discomfort, pregnancy, car, reaction time
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Disease and diagnosis of cardiovascular system
Procházka, Marek ; Jelen, Karel (advisor) ; Lopot, František (referee)
Disease and diagnosis of cardiovascular system Abstract In this bachelor's thesis, we are dealing with cardiovascular diagnostic methods and the most common diseases affecting the cardiovascular system. The text briefly introduces the basic diagnostic methods of the cardiovascular system. Furthermore, we focus on the most common heart diseases and possible diagnosis using these methods. Out of these diagnostic methods, we will focus on the CVS method (Classification of cardiovascular system), which is developed by the Institute of Thermomechanics AS CR in cooperation with the Faculty of Physical Education and sport, from which we are expecting in future the prediction of hypertension. This work also serves as a theoretical basis for the future experimental part of the research. Keywords: atherosclerosis, hypertension, diagnostic methods of cardiovascular system, diseases of cardiovascular system, CVS
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The Vibration Loading of the Human Organism through the Child Safety Seats as a Potential Source of Discomfort
Ticháčková, Olga ; Jelen, Karel (advisor) ; Lopot, František (referee)
Work title: The vibration loading of the human organism through the child safety seats as a potential source of discomfort Work objectives: Describe possibilities of the detection of the monotonous loading as one of the reasons of the discomfort of the child safety seat. Experi mental comparing of three types fixation of child safety seats: 1. fixation by help of the seat belt; 2. fixation by the help of the system ISOFIX; 3. fixation by the help of both previous systems (safety belt and system ISOFIX) Metod: Experimental measurement of vibrations of the child safcty seat which was fixed by the help of the seat belt, child safety seat fixed by the system ISOFIX and child safety seat fixed by the help of both previous systéme (safety belt and system ISOFIX). And then following comparing of the transfer of these vibrations to passengers bodies which shall show contingent difťerences between various child saťety seats. Results: There are differences of transmissibility of vibrations by various types of fixation. In these experimental study the child safety seat fixed by help of safety belt and system ISOFIX in the same time is the best absorber of vibrations. Key words: Child safety seats, Child, Monotony, Vibrations 2
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Ankylosing Spondylitis: Comparison of Diagnostic Methods and Digital 3D Model Production
Mikešová, Kateřina ; Jelen, Karel (advisor) ; Kubový, Petr (referee)
Title:Ankylosing spondylitis, comparision of diagnostic methods and production of digital 3D model Aim: The aim of this thesis was to explore the issue of diagnosis of ankylosing spondylitis (AS). Describe the investigative methods used to diagnose and monitor the progress of the disease and try to create 3D geometric model of two vertebrae from magnetic resonance images (MRI) has demonstrated the possibilities of this process and possibly illustrate the pathological processes taking place on the monitored vertebrae. Method: The thesis is elaborated in the form of annotated literature review. They were used the available literature sources from which the information was drawn for determination of pathological processes, clinical symptoms, diagnostic methods and on therapy in AS. The practical part is used for creating 3D model of MR images in the program Scanview and Amira program for creating 3D objects. Software has Amira correction options and adding image data with a lack of meaningful that MR images show. Keywords: ankylosing spondylitis, diagnostic methods, 3D model, magnetic resonance imaging Powered by TCPDF (www.tcpdf.org)
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