National Repository of Grey Literature 71 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Comparative analysis of motional pattern of swimming style crawl and specific strength exercises
Vaněčková, Jitka ; Kračmar, Bronislav (advisor) ; Jandová, Soňa (referee) ; Ružbarský, Pavel (referee)
Title: Comparative analysis of the crawl pattern and specific exercises. Purpose: The aim of the dissertation is to evaluate the coordination similarity ratio of involvement of selected muscles during the crawl swimming cycle as a target movement with imitation movement acts. Methods: The research study has the character of an intra-individual and inter- individual comparative analysis of the coordination characteristics of the movement system. This is a sequential triangulation of a quantitative-qualitative approach and an intragroup case study with an experimental way of getting data. Results: Muscle activation of selected muscles during the crawl did not show a significant difference in effect size compared to the imitation movements on the Biokinetic swimming simulator and exercising with swimming expanders. Keywords: Biokinetic, expanders, surface electromyography, swimming, swimming simulator,
Involvement of the muscles of the upper body collected at time of cross-country skiing and during simulating exercises
Horyna, Roman ; Kračmar, Bronislav (advisor) ; Jandová, Soňa (referee) ; Hnízdil, Jan (referee)
Title: Upper body muscles activity in V2 skating technique, double poling and on a skiing machine Concept 2 Objectives: Comparison of involvement upper body muscles during V2 skating technique, double poling and on a skiing machine Concept 2. Methods: Comparative analysis: the dates were measured by surface electromyography and 2-D video-analysis. Results: We found statistically significant coordination similarity by comparisons muscle preactivation and activation during V2 skating technique and double poling. Trunk flexors musculus obliquus abdominis externus and musculus rectus abdominis showed unlike the main propulsion muscles, musculus pectoralis major, musculus triceps brachii and musculus latissimus dorsi, significantly higher preactivation during V2 skating technique and double poling in comparison to skiing machine Concept 2. Activation of the main propulsion muscles on a skiing machine Concept 2 is significantly higher than during V2 skating technique and double poling. Skiing machine Concept 2 cannot be considered as a specific training method for cross-country skiing. Long-term application may cause disruption of double poling technique. Key words: Cross country skiing, V2 skating technique, double poling, skiing machine Concept 2 (SkiErg), kinesiology, surface electromyography
Comparative of muscle activity during the cycling step with the use of clipless and normal pedals
Nováková, Martina ; Kračmar, Bronislav (advisor) ; Pánek, David (referee)
Title: Comparative of muscle activity during the cycling step with the use of clipless and normal pedals. Objectives: Diploma thesis objective is to compare muscle activity during pedaling cycle with/without clipless pedal. Using EMG we want to establishe, if 6 chosen muscles are showing significant involvement difference for pedaling with/without clipless pedals. Methods: It is combination of empirical - theoretical thesis. Our work consists of intra- and interindividual comparative analytical study. We used two comparative methods for EMG signal evaluation - Pearson correlation coefficient and comparison with use of signed area of the region bounded by its graph. Results: The results of the correlation analysis show a high degree of compliance of the average normalized envelope diagrams for a cycling step with and without clipless. Based on the comparison of areas under the EMG curve, there is no higher muscle activation potential for the classic pedal. Keywords: cyclist, pedal, cycling step, muscle aktivity, electromyography
Comparative - kinsiological analysis of the rowing stroke on a single scull and on a rowing machine Concept 2
Zbořilová, Martina ; Kračmar, Bronislav (advisor) ; Jandová, Soňa (referee) ; Hnízdil, Jan (referee)
Title: Kinesiological analysis of the rowing stroke on a single scull and on a rowing ergometer Concept 2 comparison Purposes: The purpose of the present study was to determine a specific structure in timing of selected muscles during two movement patterns - rowing on a single scull and rowing on an ergometer Concept 2. Methods: By surface electromyography we recorded muscular activity, synergies and involvement throughout mean cycle of the rowing stroke. Results: The mutual correlations of mean EMG curves of all measured muscles showed, that there were not found any differences in inter-locomotive synchronization of selected muscles. Established values of correlation (r) showed higher level of dynamic balance (performance similarity between both measured activities. Determination of the muscular activity timing considering onsets and cessations, was in the percentual results explication of the movement cycle inter-locomotive different. Conclusion: Results showed a great similarity in synergies organizing the muscular coordination in between both measured physical activities. But timing of the movement was different in the moments of muscular activity onsets during rowing and during ergometer rowing. This may be attributed to the specificity of on-water locomotion. Key words: Rowing, Concept 2,...
Kinesiology analysis of the horizontal jump in bike trial
Eibl, Tomáš ; Bunc, Václav (advisor) ; Kračmar, Bronislav (referee)
Title: Kinesiology analysis of the horizontal jump in bike trial Cíle práce: The aim of this thesis is to verify the use of non-specific strength-training funds for the development of horizontal jump in bike trial. Methods: Content analysis of documents Method interview with assistant work Mgr. Marek Jelinek Ph.D. Method interview with the technician when recording data Case Study riders The method of data collection using surface electromyography Data Analysis Data processing software MS Excel - evaluation of differences of values sized muscle action potential in the different types of exercise Synthesis - making inferences and discussions Results: The list of exercises for developing strength abilities of the lower limbs, which are part of non-specific resources and influence the development of the horizontal jump in cyklotrial. Ranking exercises, which are in accordance with the measured values for effective development of horizontal jump in bike trial. The exercises are sorted from highest values aktivity of all muscles: 1st Squat with free weights 2nd Jump from second place 3rd Deadlift 4th Plyometrie 5th High Jump 6th Legpress Key words: Cycling trails, biking, surface electromyography.
Comparison of the coordination characteristics of the step of walking on the run trainer and on the natural ground
Dančová, Štěpánka ; Kračmar, Bronislav (advisor) ; Pavelka, Radim (referee)
Title: Walking step coordination characteristic comparison for walking on running simulator and off-road walking. Objectives: Goal of the thesis is to measure, analyze and evaluate data of activity and involvement of lower limb muscles for offroad walking and walking on running simulator. The measured characteristic will be intra-individually and extra-individually compared. Method: Surface polyelectromyography method for data measurement and kineziological movement analysis method for values comparison are used in the thesis. Ten muscles of lower limb (2  5 muscles on left and right lower limb) were chosen. Results: Ten lower limb muscles were chosen and their activity for walking on running simulator and offroad walking was measured by surface polyelectromyography method on ten sportsmen. The results indicate that chosen muscles participate on monitored movement. The analysis shows that the muscles activity follows the same order for each of tested sportsmen independently on the external condition (running simulator and offroad walking). The thesis that correlation of measured values is higher for running simulator have been confirmed. But m.gluteus.med. and m.glut.max. have variation in the activity of the involvement in the field and on the treadmill. Similar results have also m.vastus med....
Changes of coordination of the athletic sprint before and after the performance of special running exercises
Pařík, Ondřej ; Kračmar, Bronislav (advisor) ; Chytráčková, Jitka (referee) ; Kobesová, Alena (referee)
This doctoral thesis deals with the kinesiological analysis of the athletic run - sprint. The aim of the thesis is the time characteristics comparison and switching on of the muscles which are working during the sprint before and after the performance of special running exercises. It is becoming much more important to use the special training procedures during training sessions. The special running exercises are performed almost daily during training sessions of sprinters. The question is to what extent their performance is evident on the activation of muscles. The qualitative and quantitative results show the activation of muscles during sprint before and after the performance of the special running exercises. The main tool of the research was the surface EMG analysis of muscles during a 30-metre long sprint. The content of the research were two comparative analysis, where 8 proband participated - interindividual and intraindividual. During the evaluation process we considered the quantitative and qualitative components. On the basic of the reached results we may say that there is no diference between the run before and after the performance of special running exercises. Keywords: Sprint, special running exercises, electromyography, ANOVA
The reflection kinesiology analyse of cross country skiing
Chrástková, Martina ; Kračmar, Bronislav (advisor) ; Jandová, Soňa (referee) ; Dvořák, František (referee)
Title: The reflection kinesiology analyse of cross country skiing Purposes: To compare coordination of chosen muscles on leg during reflection of cross country skiing classic technique, skating and herringbone. Methods: Comparative analysis: the dates were measured by surface electromyography and 2-D video-analysis. Results: We founded statistical significance by comparisons muscle activation on right leg during kick during cross country skiing: classic technique, diagonal stride and herringbone and V-1 skating and herringbone. In case the left leg the statistical significance was disprove by: m. peroneus longus sin during comparison of diagonal stride and herringbone and m. gastrocnemius medialis sin V-1 skating and herringbone. We founded high level of laterality of diagonal stride and herringbone. In case V-1 skating, the significant similarity was not founded for m. vastus lateralis and m. gluteus medialis. Key words: Cross country skiing, classical technique, skating, herring bone, kinesiology, surface electromyography (EMG), muscles activation
Phylogenetical consequenses of human locomotion realizated during the schoulder girdle
Ryšánková, Lenka ; Kračmar, Bronislav (advisor) ; Véle, František (referee)
Title: Phylogenetical consequenses of human locomotion realizated during the schoulder girdle Objectives: Description of phylogenetic context of human locomotion realized through the shoulder girdle Methods: Study and analysis of the available literature Analytic-synthetic comparison of the current knowledge of evolution Study of available sources of phylogeny of locomotion in terrestrial vertebrates Results: It was found similarity in the basic control of human bipedal locomotion to control of quadrupedal locomotion of other animals and similarity in the specific form of human locomotion to locomotion of non-human primates Keywords: Bipedal locomotion, quadrupedal locomotion, control of locomotion, interlimb coordination
Kinesiological analysis of locomotion in the shoulder girdle during Nordic Walking.
Mikulíková, Petra ; Kračmar, Bronislav (advisor) ; Véle, František (referee) ; Tošnerová, Vlasta (referee)
Title: Kinesiological analysis of locomotion by shoulder girdle during Nordic Walking Aim: The purpose of this work is to subscribe kinesiological coordination between shoulder and trunk muscles during uphill Nordic Walking and free walking. Methods:The study has the character of primary analytical study of two evaluation in the form of inter- and intra-individual analysis. The group of ten Nordic Walking instructors measurements were carried out using surface electromyography synchronized with video.The data were processed in Matlab and DartFish. From the processed outputs could be visible the timing of muscles and its changes in specific movements. And also is visible the range of movement in the shoulder and elbow. The outputs were compared with expert knowledge in a field of physiotherapy. Result: Results showed that the timing of muscles during Nordic walking and free walking uphill is different. It showed a certain regularity in the muscle involvement, mainly in Nordic Walking and greater individuality in the involvement of individual probands during free walking. Conclusion: Conclusions describe a muscle coordination during the activity of Nordic Walking and free walking. Nordic Walking is recommended as an appropriate physical activity for human musculoskeletal system. Keywords: walking,...

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