|
|
Impact of gear and weaponry on posture in kneeling shooting position
Zdražila, Václav ; Vágner, Michal (advisor) ; Kubový, Petr (referee)
Title Impact of gear and weaponry on posture in kneeling shooting position Objectives The aim of this thesis is to find out the impact of gear and weaponry on posture in the kneeling shooting position. Specifically, this study examines the influence of carried load on posture, aiming stability and balance in the high and low kneeling shooting position variants. Methods This thesis has an empirical observational character. The shooting position was tested by Qualisys camera system and Kistler pressure plates. The measurment was performed on 16 Military department students with mean age of 23 years (standard deviation 2,63 years). Measurements were carried out in four levels, with no load, light load of 15 kg, mean load of 30 kg and heavy load of 45 kg. The measurement was performed on high kneeling variant and the low variant with elbow supported by the front knee. Intra-individual comparison of the results of each level was determined by a T-test. Results: The load in a form of gear and weapony had a statisicaly significant - negative influence on the kneeling shooting position posture. Gear and weaponry used for this study caused a lower trunk position, increased shoulders angle in the low variant, lesser aiming stability and balance control in the position. The bigger was the weight of gear and...
|
|
|
Exercise training programs for soldiers of the Czech Army
Čechura, René ; Venzara, Jan (advisor) ; Vágner, Michal (referee)
Title of the diploma dissertation: Exercise training programs for soldiers of the Czech Army Objective of diploma dissertation: Ascertainment of the current physical condition and proportion of locomotive abilities of the soldiers of Czech Army based on analysis of results of annual testing, and consecutive creation of training programms based on principles of excercises and methods of technical sports for their improvements. Respondents: Professional soldiers of 151st Engineer battalion in Bechyně. Method: In the first phase the data were received from the analysis of the annual testing of the soldiers and its consecutive comparation. In the second phase the data were received from the group of 434 professional soldiers, who were devided in 3 target groups according to their results. Results: In the second phase there were created training programms for target groups by using of the excercises and methods of technical sports. Key words: Physical training, physical readiness of the soldier, annual testing, technical sports, Karate, Musado, Judo
|
|
|
Impact of gear and weaponry on muscle activation in the direct front kick
Oláh, Vladan ; Vágner, Michal (advisor) ; Kubový, Petr (referee)
Title: The influence of equipment and arms on skeletal muscles activities while practising direct kick. Aim: The aim of this thesis was to find out the influence of carried equipment and arms on the activity of skeletal muscles when a direct front kick is being practised. The methods used: This thesis has an empirically observational character. Muscular activities were measured by means of surface electromyography synchronised by Qualisys screen system. To obtain statistic data, a t-test has been used, requiring 5 % significance level. Results: While carrying a 15-kilogram load, the activity of skeletal muscles was not significantly reduced when performing a direct front kick. However, a 30- kilogram load caused a substantial reduction of skeletal muscular activities during the kick described above. After adding a 15-kilogram bag to another 15 kilograms in the form of a body armour, a helmet and arms, the muscular activity changed its features in a considerable way. Furthermore, most respondents proved 45-kilogram load to be over their limit. The equipment and arms of that weight led to the summation action potential, exceeding the power- coordinative functional reserve, and thus the deformation of the direct front kick technique. Keywords: close combat, EMG, equipment, arms, direct front kick
|
|
|
Effects of isokinetic strength and postural muscles on dynamic strength, velocity and angular velocity of a front kick with and no carried load.
Krajcigr, Jan ; Vágner, Michal (advisor) ; Oláh, Vladan (referee)
Title: Effects of isokinetic strength and postural muscles on dynamic strength, velocity and angular velocity of a front kick with and no carried load. Objectives: The aim of the work was to find the effect of the isokinetic strength of hip and knee flexors and extensors of the lower limb performing a front kick, hip rotators during concentric and eccentric contraction of the standing lower limb and the postural muscles on dynamic forces, velocity and angular velocity of a front kick with and no carried load. Methods: This correlation study was conducted on 16 male participants (age: 22 ± 1,5 years⁏ weight: 79 ± 6,6 kg⁏ height: 182 ± 6,1 cm) studying military physical education at the Faculty of Physical Education and Sports of Charles University in Prague. Participants performed 5 consecutive front kicks with or without additional load (0 kg, 5 kg, 15 kg, 30 kg, 45 kg). The dynamic strength of the kicks was measured using a Kistler force plate. The velocity and angular velocity of the kicks were measured using a motion capture system (Qualisys). The isokinetic strength of hip and knee flexors and extensors and hip internal and external rotators were measured using a Humac Norm isokinetic dynamometer (CSMI). Postural muscles strength was assessed using 5 different stability tests. The correlation...
|
|
|
Utilization of Multidimensional scaling and kinetic tests for evaluation and selection of soldiers to courses of close combat
Vágner, Michal ; Hendl, Jan (advisor) ; Zháněl, Jiří (referee) ; Komeštík, Blahoslav (referee)
TTiittllee:: Utilization of Multidimensional scaling and kinetic tests for evaluation and selection of soldiers to courses of close combat TThhee aaiimm ooff wwoorrkk:: The work deals with the structure scale for evaluation of close combat techniques and the selection of predictors, which will improve the quality of the identification of soldiers with conditions for the successful solution of model situations using the techniques of close combat. MMeetthhoodd:: In the beginning of the study is constructed a scale of criterion variable for evaluating techniques of close combat. The construction of scale was used the model of multidimensional scaling. The data was obtained from eight Czech Army experts of close combat. The scale was verified by generalized and weighted Kappa coefficient. By the kinetic tests was tested the group of 157 professional soldiers from different units. The soldiers were old between 20 and 32. Besides kinetic tests were in the study included the previous experiences with fight activities. To selection of the kinetic tests was used the model of linear regression. The evaluation of predictive power of kinetic tests was made by individual cohorts in prediction cycle. RReessuullttss:: In first part of the study was created scale of criterion variable which contain three...
|
|
|
Systematic review of the influence of lower limb and trunk strength on aerobic performance during loaded marching
Pustka, Martin ; Sýkora, Karel (advisor) ; Vágner, Michal (referee)
Title: Systematic review of the influence of lower limbs and trunk strength on aerobic performance during loaded marching Goals: On the basis of a literature review, find out what is the relationship between the lower limbs and trunk strenght and between the aerobic performance during loaded marching. Alternatively, to determine the effect of the development of strength skills of the lower limbs and trunk on aerobic performance during loaded marching. Method: The presented study is processed in the form of a systematic search with correlation elements. The Web of Science database was selected to search for articles. The search was performed using a search script that had four parts. The last part of the search script generated 44 articles. These articles were then analyzed and studies were selected according to predetermined criteria. From the 44 generated studies, two were selected that met all criteria. Another six selected studies were then sought in an unsystematic way. Thus, a total of eight studies were included in the search. Conclusion: The results of the correlation coefficients between the lower limbs and trunk strenght and between the aerobic performance during load marching indicated in most cases a positive relationship, although the values were not completely significant. The increase...
|
|
|
Dynamic forces and speed of the front kick and roundhouse kick in combat activities: Systemic review
Tesař, David ; Vágner, Michal (advisor) ; Oláh, Vladan (referee)
Title: Dynamic forces and speed of the front kick and roundhouse kick in combat activities: Systemic review. Objective: The main goal of this study was to compare dynamic forces and velocity of the front kick and roundhouse kick in combat activities. Methods: This bachelor thesis was processed as a systematic review of literature and studies dealing with dynamic forces and kinematics of front kick and roundhouse kick. The methodological procedure of processing was chosen on the basis of the international recommendation PRISMA. For the initial selection of potential studies, a script was compiled and used to reduce them from search databases (Web of Science, SportDiscus, Proquest, PubMed). Selected studies had to meet predetermined methodological criteria, including experimental description, in order to classify and then compare the results of dynamic forces and kinematics of front kick and roundhouse kick. Results: Higher maximum forces, impact forces, angular velocities of the hip and knee in extension and hip in flexion were measured in a front kick, as well as a shorter impact time. The maximum velocity of the foot and knee were significantly higher for the roundhouse kick, which is related to the execution time, which is shorter for the roundhouse kick (to the target and without a physical...
|
|
|
The effect of various breathing variations on intra-thoracic pressure, bar kinematics and muscle activity in bench press exercise.
Blažek, Dušan ; Šťastný, Petr (advisor) ; Vágner, Michal (referee)
Title: The effect of breathing technique on intra-thoracic pressure, kinematics of barbell, and muscle activity during bench press exercise. Objectives: The main aim of this study is to determine relationship between breathing technique and bench press exercise. Furthermore, determine which breathing modification leads to overcoming highest resistance and how each individual breathing techniques (Valsalva maneuver (VM), Hold breath (HB), Lung packing (PAC), "reversed breathing" (REVB)) affects kinematics of barbell, and muscle activity, during different intensity (1 RM, 4RM, 8RM, 12RM). Methods: Experiment of cross-sectional character, with usage of our-calibrated sensor, for intrathoracic pressure measurements, 3D kinematics with passive markers and surface electromyography. For measuring anthropometric measurements was further used goniometer, digital scale, and measuring tape. Comparisons of the breathing techniques was done by analysis of covariance ANOVA, while particular parameters were compared by Pearson correlation. Results: Except of REVB technique, which indicated significantly lower load, there was no significant difference between techniques in lifted resistance. Similar effect was observed at results of intrathoracic pressure, where REVB technique showed significantly lower pressure,...
|
|
|
The effect of various breathing variations on intra-thoracic pressure, bar kinematics and muscle activity in bench press exercise.
Blažek, Dušan ; Šťastný, Petr (advisor) ; Vágner, Michal (referee) ; Farana, Roman (referee)
Title: The effect of breathing technique on intra-thoracic pressure, kinematics of barbell, and muscle activity during bench press exercise. Objectives: The main aim of this study is to determine relationship between breathing technique and bench press exercise. Furthermore, determine which breathing modification leads to overcoming highest resistance and how each individual breathing techniques (Valsalva maneuver (VM), Hold breath (HB), Lung packing (PAC), "reversed breathing" (REVB)) affects kinematics of barbell, and muscle activity, during different intensity (1 RM, 4RM, 8RM, 12RM). Methods: Experiment of cross-sectional character, with usage of our-calibrated sensor, for intrathoracic pressure measurements, 3D kinematics with passive markers and surface electromyography. For measuring anthropometric measurements was further used goniometer, digital scale, and measuring tape. Comparisons of the breathing techniques was done by analysis of covariance ANOVA, while particular parameters were compared by Pearson correlation. Results: Except of REVB technique, which indicated significantly lower load, there was no significant difference between techniques in lifted resistance. Similar effect was observed at results of intrathoracic pressure, where REVB technique showed significantly lower pressure,...
|
|
|
The effect of short tread intervals used in tactical maneuvers on the dynamic front kick forces
Hecl, Jiří ; Vágner, Michal (advisor) ; Sovák, Libor (referee)
The name of the thesis The effect of short running intervals used in the tactical maneuver "peeling" on dynamic strength of a front kick. The aim of the thesis: The aim of this thesis is to find out whether physical load in a tactical scenario of peeling backwards has a significant effect on dynamic indicators of a front kick performed while carrying equipment (boots, a ballistic gear 12 kg and an assault rifle) and carried load (backpack 15 kg). The methods used in the thesis: There is a method of cross-sectional study. We tested 10 soldiers' (26,9±4,2 y, 85,6±9 kg; 86,7 ± 8,81 kg,180±4,62 cm) dynamic strength of a front kick using triaxial force plate (Kistler 9281) while adding military equipment and physical activity. Dynamic indicators that were set for comparison: Peak force (N), Impulse (N.s), Impact force (N), the time to reach Peak Force (s), and kick time (s). Then, the average of the five kicks was calculated and determined as the resulting value. The reliability of all five kicks were verified using ICC - Intraclass correlation coefficient and its' confidential intervals. Shapiro - Wilk test was used to determine whether the data are normally distributed. The comparison of interventions was made using a pair t-test in case of normal distribution of data, or Wilcoxon pair test in case of...
|
guest ::
RSS feed.