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EMGs of Back Muscles in Relation with Different Settings of the Straps of Backpacks
Strejcová, Hana ; Vilímek, Miloslav (advisor) ; Goldmann, Tomáš (referee)
Title: EMGs of Back Muscles in Relation with Different Settings of the Straps of Backpacks Objectives: The aim of this study is to compare the electrical activity of chosen muscles during the gait with student backpack and during the different types of placing the backpack on the back in the vertical plane. The second aim is to find what it the best type of the backpack placement on the back based on the electrical activity. Methods: This thesis is an analytical-experimental research. In the theoretical part, there is a review of available sources relating to existing studies about load carriage, especially backpack carrying. It is preferentially about school type of backpaks, the recommended load limit, the way of placing a backpack on the back and the way of placing a load in the backpack. In the experimental part, there are methods used during experiment. The surface electromyografy was chosen as a experimental method. M. trapezius pars descendens, m. erector spinae and m. rectus abdomis were chosen for recording the EMG signal. The data were recorded during the gait with the backpack of 10% of proband's weight and during 3 different types of backpack placement. The upper type of placement was placed with the centre of the backpack in the level of seventh thoracic vertebra (T7), the middle type...
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The evaluating of the change of walking quality in dancers in comparison with the normal population
Korošová, Kateřina ; Vilímek, Miloslav (advisor) ; Goldmann, Tomáš (referee)
Thesis name: The evaluating of the change of walking quality in dancers in comparison with the normal population Thesis goal: This thesis deals with effect of long-term ballet dance on kinematic parameters of gait. The theoretical part includes basic characteristics of gait cycle and kinesiological and biomechanical findings of ballet movement and its compensatory mechanisms in musculoskeletal system. There is analyzed angular parameters of gait cycle in ballet dancers in performance of walking in the experimental part. The results will show if the many-years intensive training of dance affects the alignment of particular joints of the body during human walk. Method: Kinematic analysis by Qualisys system allowing automatic processing of record obtained with infrared cameras. Qualisys uses its own high-frequency cameras for precise movement tracking of the measured object using active or passive markers. Gathered data from device were processed and statictically evaluated with Microsoft Office Excel. Keywords: gait, bipedal locomotion, dance, gait analysis, gait of dancers, ballet, kinematics analysis
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Selected parameters of gait and foot in consideration of the individual's body height
Strnadová, Hana ; Vilímek, Miloslav (advisor) ; Goldmann, Tomáš (referee)
Title: Selected parameters of gait and foot in consideration of the individual's body height Objectives: This thesis deals with a dependence of the selected gait and foot characteristics on a person's body height. These parameters are compared between a group of men and a group of women. In addition, a validity of selected formulas used for a determination of body height is evaluated. Methods: Mutual relation among the gait and foot characteristics and the individual's body height is observed. The thesis is a descriptive - association research, the comparative method is chosen in the practical part of the thesis. For an objectification of the research, the Plantograph and the 3D kinematic gait analysis performed by Qualysis system was used. Results: It was found out that the selected formulas used for a determination of body height are valid. The best results are brought by the formulas which count with a length of a bare foot, the length of a step and a double-step. On the contrary, the worse results are achieved by using the formulas which count with the dimension of shoe print. A tight dependence of the foot length and the length of the step / double-step on the body height was proven. A minimum dependence of the foot width on the body height was proven. Nevertheless the foot width is verifiably...
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Dependance of the gait parameters on a stature of an adult
Maštalková, Petra ; Vilímek, Miloslav (advisor) ; Goldmann, Tomáš (referee)
Title: Dependance of the gait parameters on a stature of an adult Objectives: The main aim of this study is to find out how the gait parameters depends on a stature of an adult. Another aim of this study is to compare these parameters between group of men and group of women. Methods: This thesis is type of descriptive - association research. In the practical part was used method of comparison for locomotion of people. As an objectification method was chosen 3D kinematic analysis of gait, which was performed using the Qualisys. Results: It was found that the dependence on a stature subject to the step length, pelvic rotation, flexion of a front knee, frequency and walking speed. Linear dependence on a stature is not subject to the the angle between femurs and flexion of a back knee. It was also found that the values of parameters which have the highest rate of variability reach a relatively low angular values. These parameters include the angle of rotation of a pelvis and the angle of flexion of a front knee. Opposite qualities shows the angle between femurs, which reaches the highest value, but clearly has the lowest rate of variability. Keywords: gait, footstep lenght, double support, stature
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Experimental motion analysis of human locomotion
Málková, Monika ; Vilímek, Miloslav (advisor) ; Goldmann, Tomáš (referee)
Title: Experimental motion analysis of human locomotion Objectives: The aim of this work is verification of the hypothesis that it is possible to identify humans using measurement of parameters of their gait taken from surveillance camera's records. Methods: In our thesis we used the method of comparison. The aim of the experiment is comparison of parameters measured in different trials of each subject under different conditions (different walking speeds, with or without clothes on, and using either 2D or 3D record), as well as comparison across different subjects. Results: We found that using a 3D record of human gait, it is possible to improve our capability of identifying them. We also found that it is necessary to compare either dressed subjects strictly among themselves or stripped subjects strictly among themselves, because otherwise the comparison is not meaningful. Furthermore, we found that using our geometrical methods, it is possible to deduce gait parameters from a 2D camera record when it comes to height of the subject, but not so for length of their step. Keywords: gait, identification, kinematic analysis, forensic biomechanics
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Pedestrians Tracking in a Video Record from a Stationary Camera
Trnkal, Milan ; Orság, Filip (referee) ; Goldmann, Tomáš (advisor)
This bachelor thesis focuses on pedestrians tracking from camera. In this work, I have introduced several methods of computer vision suitable for detection and classification of people. I proposed an algorithm for detecting and tracking pedestrians based on detection of movement. The application uses a Histogram of Oriented Gradients and SVM classifier together with color histograms for identification of pedestrians. Pedestrian's trajectories are then rendered to the output. Last part of the thesis deals with testing and evaluation of the results of the algorithm.
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Perimeter Monitoring and Intrusion Detection Based on Camera Surveillance
Goldmann, Tomáš ; Drahanský, Martin (referee) ; Orság, Filip (advisor)
This bachelor thesis contains a description of the basic system for perimeter monitoring. The main part of the thesis introduces the methods of computer vision suitable for detection and classification of objects. Furthermore, I devised an algorithm based on background subtraction which uses a Histogram of Oriented Gradients for description of objects and an SVM classifier for their classification. The final part of the thesis consists of a comparison of the descriptor based on the Histogram of Oriented Gradients and the SIFT descriptor and an evaluation of precision of the detection algorithm.
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Mobile Robot Navigation
Goldmann, Tomáš ; Luža, Radim (referee) ; Orság, Filip (advisor)
When we look at the eld of robotics we nd that exist a lot of types of robots. Some of tham use location navigation and global navigation for their work. This work aims to map options of location navigation and description of basic technique which used. Especially, we will deal with algorithms which work with optical sensors, for example camera, stereocamera or laser which scan medium. Practise section this work is focused on the proposal and implementacion algorithm which working with local navigation for robot's return to the starting position. All this work is connecting with tracked robot which formed in the framework one of project realization at Faculty of information technology.
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