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Effect of shooting stances on ballistic protection of the shooter
Zdražila, Václav ; Barták, Erik (advisor) ; Kubový, Petr (referee)
Title Effect of shooting stances on ballistic protection of the shooter Objectives The goal of this thesis is to develop a method which could measure ballistic protection, which is currently provided by a bulletproof vest to the shooter in a current shooting stance. This work also focuses on analysis of the currently used shooting techniques and shooting stances, comparison of protection they can provide, and last but not least, to fill the gap in literature, wich deals with this issue. Methods This is an empirical thesis of observational character. Shooting stances were tested on a camera system named Qualisys. The results were first processed by a program for 3D analysis, and the ballistic protection provided by the bulletproof vest in different positions was calculated in a program for 3D modeling. Results: From the measured data, it was found that changing targets to the left (for right- handed) the provided ballistic protection significantly changes to worse. Conversely, when changing targets to the right, the ballistic protection faired the same or slightly better than aiming forward. The worst results of all stances came from the side shooting stance in which the bulletproof vest provided almost no protection. Keywords Ballistic protection, shooting stances, Qualisys, 3d analysis, vital zone
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Stability of motion for softball pitcher by kinematic analysis
Vacek, Milan ; Pravečková, Petra (advisor) ; Kočíb, Tomáš (referee)
Title: Stability of motion for softball pitcher by kinematic analysis Objectives: The aim of this work was to analyze the motion of softball pitch. We tried to compare and find differences between four kinds of the pitch. Methods: In our thesis we used 3D kinematic analysis to collect data. We used the system Qualysis. High - frequency cameras recorded 32 pitches from the male Czech pitcher and then analyze in specific software. Results: We found out that motion of the pitches are not very different from each other. Only change up is significantly different from other pitches, but still batter is not able to recognize, which kind of the pitch is pitcher going to use. Keywords: fastball, raiseball, dropball, change up, biomechanic of motion, 3D analysis, Qualisys
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Influence of the breathing muscles using POWERbreathe.
Čapková, Alena ; Šorfová, Monika (advisor) ; Strnad, Pavel (referee)
Title: Influence of the breathing muscles using POWERbreathe. Objective: The main object of this thesis is to determine, if it is possible to use 3D kinematic analysis to measure changes of trunk shapes during quiet breathing and breathing when using POWERbreathe and if it is possible to identify the changes. The thesis is divided to two parts. The first part contains theoretical part, focused on issue of kinesiology and biomechanics of breathing. The special part is concentrated on research, where I find changes of trunk kinematics during application of POWERbreathe. Method: Measurements were made on 6 probands in the same age category (women), when each measurement was performed during quiet breathing, maximum inhale/exhale, resistive breathing when using POWERbreathe and then another quiet breathing and maximum inhale/exhale. Quiet breathing was chosen as benchmark. The experimental measurements was done during one day. The research was used 3D kinematic motion analysis using system Qualysis. Were observed changes in the shape of the trunk and possibly caused breath changes during using POWERbreathe. Results: Measurements has confirmed, that the system Qualysis is able to detect mobility and the trunk shape changes. At a certain threshold load device POWERbreathe prevailed movements cranial...
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Effect of shooting stances on ballistic protection of the shooter
Zdražila, Václav ; Barták, Erik (advisor) ; Kubový, Petr (referee)
Title Effect of shooting stances on ballistic protection of the shooter Objectives The goal of this thesis is to develop a method which could measure ballistic protection, which is currently provided by a bulletproof vest to the shooter in a current shooting stance. This work also focuses on analysis of the currently used shooting techniques and shooting stances, comparison of protection they can provide, and last but not least, to fill the gap in literature, wich deals with this issue. Methods This is an empirical thesis of observational character. Shooting stances were tested on a camera system named Qualisys. The results were first processed by a program for 3D analysis, and the ballistic protection provided by the bulletproof vest in different positions was calculated in a program for 3D modeling. Results: From the measured data, it was found that changing targets to the left (for right- handed) the provided ballistic protection significantly changes to worse. Conversely, when changing targets to the right, the ballistic protection faired the same or slightly better than aiming forward. The worst results of all stances came from the side shooting stance in which the bulletproof vest provided almost no protection. Keywords Ballistic protection, shooting stances, Qualisys, 3d analysis, vital zone
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