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Comparison of support phase in the take-off to the hurdle and touch-down after hurdle clearance in disciplines 110 m hurdles and 400 m hurdles
Musil, Daniel ; Hojka, Vladimír (advisor) ; Kaplan, Aleš (referee)
Tittle (Thema works): Comparison of support phase in the take-off to the hurdle and touch- down after hurdle clearance in disciplines 110 m hurdles and 400 m hurdles Thesis'objectives: The objectives of the study are to identify differences in centre of pressure trajectory, in amount and distribution of pressure on foot during the take-off to the hurdle and touch-down after hurdle. This was measured on 110m (100m) and 400m tracks. Methods: Measurements were made with the help of Pedar-x system. Subjects were tested in three trials from the first hurdle to the third hurdle on 110m (100m) and 400m tracks. Hurdle with the shortest flight phase was later analyzed. Results: Difference in the take-off to the hurdle between 110m (100m) and 400m is in distribution of pressure and in centre of pressure trajectory only during the braking phase. Difference in distribution of pressure in touch-down after hurdle on 110m (100m) and 400m track was found between active and passive landing. The centre of pressure trajectory in touch-down after hurdle is longer on 400m track. Key words: hurdles, biomechanics, support phase, Pedar-x
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Effect of body size and posture on biomechanics of walking
Matějovská, Zuzana ; Hora, Martin (advisor) ; Farana, Roman (referee)
During human walk, we balance internal muscle forces and external forces outside of the body, while trying to minimize physiological energetic expenditure and mechanical loading on the body. The biomechanics of walking can be affected by various factors, including body size. In individuals with greater body size, the ground reaction force increases, so it is expected that joint moment of the lower limb in individuals with greater body size should increases. However, this relationship is not always true - as documented by previous studies, larger individuals use moderating mechanisms in the form of postural adjustment of the lower limb which decreases the load on joints during walking. The aim of this diploma thesis is to investigate the effect of body size and posture on the biomechanics of walking in the stance phase of walking, and to verify the presence of moderating mechanisms. We obtained kinematic and kinetic data from nineteen probands. The data was collected during three types of walking - during normal walking, walking with extended knees and crouched walking. We used Visual3D software to calculate angles in joints and joints moments of the lower limb. The independent effect of body mass, lower limb length measured in Visual3D, lower limb length measured anthropometrically, biiliac...
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Comparison of selected parameters of long jump disabled athletes
Čutková, Michaela ; Feher, Jan (advisor) ; Červinka, Pavel (referee)
Title: Comparison of selected parameters of long jump disabled athletes. Goals: The main goal of this work is to evaluate the selected characteristics in the long jump persons with various disabilities. Method: Data were obtained by analyzing long jump. I focused on four variables in the long jump, which we evaluated in the program Kinovea. The resulting data were first compared with those of healthy jumpers and then within each of class. Results: The values that we created after analysis, we published these results. Ideal values of selected parameters achieved more health jumpers, jumper with disabilities reached lower performance. Within the different categories were examined parameter values are different; the biggest differences were noted in the above-knee amputation jumpers Key words: Long jump, disability athletes, acceleration rate, fulcrum phase, angle of takeoff.
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Comparison of support phase in the take-off to the hurdle and touch-down after hurdle clearance in disciplines 110 m hurdles and 400 m hurdles
Musil, Daniel ; Hojka, Vladimír (advisor) ; Kaplan, Aleš (referee)
Tittle (Thema works): Comparison of support phase in the take-off to the hurdle and touch- down after hurdle clearance in disciplines 110 m hurdles and 400 m hurdles Thesis'objectives: The objectives of the study are to identify differences in centre of pressure trajectory, in amount and distribution of pressure on foot during the take-off to the hurdle and touch-down after hurdle. This was measured on 110m (100m) and 400m tracks. Methods: Measurements were made with the help of Pedar-x system. Subjects were tested in three trials from the first hurdle to the third hurdle on 110m (100m) and 400m tracks. Hurdle with the shortest flight phase was later analyzed. Results: Difference in the take-off to the hurdle between 110m (100m) and 400m is in distribution of pressure and in centre of pressure trajectory only during the braking phase. Difference in distribution of pressure in touch-down after hurdle on 110m (100m) and 400m track was found between active and passive landing. The centre of pressure trajectory in touch-down after hurdle is longer on 400m track. Key words: hurdles, biomechanics, support phase, Pedar-x
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