National Repository of Grey Literature 163 records found  beginprevious83 - 92nextend  jump to record: Search took 0.01 seconds. 
Nutrition of the children playing football
Kocourek, Lukáš ; Šteffl, Michal (advisor) ; Kinkorová, Ivana (referee)
Title: Nutrition of the children playing football Objectives: The main objective of this thesis was to figure out the eating habits of the children in the U14 category of football players. Specifically, the observation was done for three days - a training day, a match day and a free day. It was also observed how these days different from each other. Finally the nutrition recommendations were provided based on the observations. Methods: The thesis was performed as the cross-section study. To gain the information about the nutrition habits there was used the standardized nutrition questionnaire. Nonparametric statistics methods were used for statistical data analysis. Results: Research was performed on the sample of 12 boys in the age of 12-13 years who play the football at the student league level. Students sample was chosen from the students in the Czech Republic. The insufficient energetic income and particularly a carbohydrate deficiency was identified in the sample. The highest deficiencies were measured during the match day. On the contrary the highest amounts were measured during a free day. There were not any significant differences identified in comparison to the recommendations. Conclusion: From the energetic and macronutriens income perspective the study did not confirm different incomes...
Comparison of effort on roller skis without load and with carried load
Sprinz, Matúš ; Sýkora, Karel (advisor) ; Šteffl, Michal (referee)
Title: Comparision of loads during movement on the roller skis with or without additional weight Objectives: The aim of this study was to compare the changes in heart rate (HR), VO2 and energy expenditure (EE) when moving on roller skis with or without weight in different inclinations in a laboratory conditions. Methods: A randomised cross-over study was conducted on 10 male students of Military Department at the Faculty of Physical Education and Sports of Charles University (mean±SD: age 22.6±1.59 years, weight 76.8±5.55 kg, height 180.2±2.4 cm). The study was performed in a biomedical laboratory at the University, José Martího 269, 162 52, Prague. Each volunteer underwent two tests on treadmill ergometer using modified roller skis. The tests consisted of 15 minutes walking at a constant speed 3 km/h, incline started at 15% and was raised by 5% every 5 minutes. Once out of two times, volunteers carried an additional weight of 15 kg backpack in random order. Significance level was set to p < 0.05 and the data were processed using analysis of repeated mesurements (ANOVA). Results: Results show that the energy demands are substantionally higher with the additional weight. Shown as mean difference between weight and weight-free groups. At 15% incline - HR 13.9%, VO2 17.9%, EE 18.6%. At 20% incline the...
Importance of natural antinutritional and toxic substances in food
Hruša, Adam ; Kinkorová, Ivana (advisor) ; Šteffl, Michal (referee)
The bachelor thesis deals with the importance of natural antinutritive and toxic substances. The aim of this work is to provide a comprehensive view of the topic and further specify the selected group of substances with a focus on their possible effects on the health of the general population and the health of athletes. This is a theoretical type of thesis, which was processed using the method of literary research. Key words: antinutrients, anti-nutritional factors, plant foods, potential health benefits, adverse health effect, proteas inhibitors, phytoestrogens
Subjectively perceived health and physical activity of the elderly compared to a fitness walk test.
Šmat, Václav ; Prajerová, Květa (advisor) ; Šteffl, Michal (referee)
Title: Subjectively perceived health fitness and physical activity of the elderly compared to a fitness walk test Objectives: The aim of this paper is to compare the subjectively perceived health (fitness) and physical activity with an actual fitness walk test done by students of the University of the Third Age, using the LTEQ and SF-12 questionnaires. Methods: There were 64 seniors who participated in this study (age 67,36 ± 3,55, height 1,67 ± 7,04 cm, weight 69,80 ± 9,9 kg). All of them students of the University of the Third Age, Faculty of Physical Education and Sport, Charles University. Two types of Questionnaires were used: The Leisure Time Exercise Questionnaire and A 12-Item Short-Form Health Survey, both of which are typically used to study the population of the elderly. A 2 km fitness walk test by Stejskal was used to gather data about aerobic fitness. The test took place at the athletic oval on the grounds of Faculty of Physical Education and Sport, Charles University. Polar S610i sporttester was used to measure heart rate. Statistic was used to calculate all SPSS 21. Results: The results proved a significant correspondence between the subjectively perceived amount of leisure physical activity and the aerobic fitness measured by the 2km fitness walk test - specifically regarding...
Body composition and morphological asymmetries in footballers a theirs possible residuals in phase return to training
Pečl, Adam ; Malá, Lucia (advisor) ; Šteffl, Michal (referee)
Title: Body composition and morphological asymmetries in football players and their possible residues in the phase of return after injury Aim: The main goal of the work was to identify changes in body composition and the occurrence of morphological asymmetries and the length of the residual period after anterior cruciate ligament (ACL) injury in elite footballers. Methods: The research group consisted of two elite adult football players. The basic characteristics are listed in Table 2. The players were active in the highest national competitions and their training volume corresponds to 15-23 hours per week. The selection of players was intentional. Prior to the measurement, we determined the current standing body height with an accuracy of 1 mm using a stadiometer (SECA 242, Hamburg, Germany) and the body weight with an accuracy of 1 g using a digital scale (SECA 769, Hamburg, Germany). We used a multifrequency bioimpedance analyser (Tanita MC-980MA, Tanita Corporation, Japan) to determine body composition. The actual measurement lasted approximately 120 s, the actual body weight to recalculate indirectly measurable parameters was recorded by the analyser itself with an accuracy of 1 g. We found out: the current body composition and its changes in the monitored probands. We monitored the change in...
Dance training and its effect on dancers' cardiorespiratory fitness
Tůmová, Jitka ; Bunc, Václav (advisor) ; Šteffl, Michal (referee)
Name Dance training and its effect on dancers' cardiorespiratory fitness Objective The aim of this bachelor thesis is to assess the effect of dance training on cardiorespiratory fitness of dance students using Step-test. Method The theoretical part of the bachelor's thesis has the character of a literature review. The practical part has the character of quantitative research conducted on six female dance students aged 15-17 years old. This is therefore a case study. The evaluation of cardiorespiratory fitness was tested using Step-test in a field conditions. Part of the research project is the record and analysis of all training activities. Results Out of six female students, three students achieved a significant improvement in the level of their cardiorespiratory fitness, on the av. by 23,03 % ± 2,6 %. Two students showed insignificant improvement, on the av. by 2,3 % ± 1,3 % and one student's final values recorded insignificant decline by 0,94 %. The current level of cardiorespiratory fitness of the dancers plays an important role. The higher are the initial values measured during testing, the smaller the training-induced changes. The structure of the dance training at the dance school is sufficient for the cultivation of cardiorespiratory fitness only up to a certain level of fitness of average...
The effect of meditation on cortisol levels in saliva
Kačerová, Kateřina ; Jaklová Dytrtová, Jana (advisor) ; Šteffl, Michal (referee)
Title: The effect of meditation on cortisol levels in saliva Objectives: The main objective of the research project in this master's thesis was to objectively (based on changes in cortisol levels) and subjectively (by method of questionnaire) study the effect meditation has on stress levels. Methods: The objective method in this work was measuring cortisol in saliva with the help of an established and certified ELISA method on an ELISA reader device. The cortisol level was measured before meditation and after meditation. A method of questionnaire was used to determine the subjective emotions and feelings of the participants before and after meditation. The total surveyed group consisted of 25 healthy men, students of UK FTVS with a valid medical exam, between the ages of 19 - 35. The experimental part and data collection were conducted in two phases. (i) First, it was determined, on ten of the same participants during two consecutive days, which type of meditation (static breathing or dynamic) will be better accepted by the participants and will have a greater effect on lowering cortisol levels. (ii) Then, static breathing meditation was selected (as more effective for the given group), whose effect on lowering cortisol levels was tested on a larger group of participants (15). Results: Cortisol...
Relationship between physical activities and memory in older adults
Tůmová, Tereza ; Šteffl, Michal (advisor) ; Staňková, Klára (referee)
Title: Relationship between physical activities and memory in older adults Objectives: Estimating the effect of physical activity on memory in seniors older than 60 years. Methods: This is a cross-sectional study. The data for the elaboration of the diploma thesis were obtained from the pan-European project Survey of Health Aging and Retirement in Europe (SHARE). In this study, all probands were divided according to gender and further into three groups according to their level of education using the International Standard Classification of Education (ISCED - 97). In the data analysis, means and standard deviations were calculated for continuous variables and percentages were calculated for categorical variables. Non-parametric statistical methods were used to test the hypotheses. For more than three categories, the Kruskal-Wallis test was used, followed by post-hoc analysis. The Mann-Whitney U test with Bonferoni correction was used for post-hoc analysis. Testing of memory functions was performed using a ten-word memorization test with immediate and delayed recall. Results: Data from of 47,169 probands older than 60 years were used in the study. A total of 26,034 women and 21,135 men participated. The investigation demonstrated a positive effect of physical and sports activities on the memory...
Isokinetic strength of shoulder rotation in elite Czech female volleyball players
Hoppeová, Andrea ; Šteffl, Michal (advisor) ; Vorálek, Rostislav (referee)
Title: Isokinetic strength of shoulder rotation in elite Czech female volleyball players Objectives: The main goal was to evaluate and compare the results of measuring internal and external rotation in the shoulder joint of elite volleyball players of the age categories "Women" and "Juniors U18". Method: The players of the national teams "Juniors U18" and "Women" took part in the measurement. Isokinetic strength parameters were measured using a Cybex Humac Norm isokinetic dynamometer (Cybex NORM®, Humac, CA, USA). The maximum strength of internal and external rotation of the shoulder joint was evaluated. Muscle strength was measured at an angular velocity of 60 ř/s and the upper limb was abducted at 90ř. Descriptive statistics on the test result were calculated and evaluated using the Excel software (Microsoft, USA). Statistical data processing was performed at the level of comparison of averages and percentage differences between individual categories of results. Results: The results show that the Women group had higher strength than the U18 Junior group. On the contrary, the U18 Junior group had more balanced results, both between the dominant and non-dominant limb and between internal and external rotation. The measured strength of rotation in Women shown a greater muscle imbalance. In...
The influence of foam rolling on range of motion, strength of the knee extensors and flexors, and H/Q ratio
Šablatúra, Michal ; Šteffl, Michal (advisor) ; Větrovský, Tomáš (referee)
Title: The influence of foam rolling on range of motion, strength of the knee extensors and flexors and H/Q ratio. Objectives: The aim of the diploma thesis was to determine the effect of the foam roller on the range of motion and strength of the extensors and flexors of the knee joint. The muscular strength of the knee extensors and flexors was determined using a Humac norm isokinetic dynamometer. Another goal was to determine the effect of the foam roller on the force ratio of extensors and flexors (H / Q) which is an important detail for the prevention of lower limb injuries Methods: This is an experimental study. The measured research group (n = 12) consisted of the students of the Faculty of Physical Education and Sport at the Charles University. A Black roll foam roller of medium hardness with a non-serrated surface was used. The range of motion of the knee flexors were measured using the sit and reach test and the knee extension test. The range of motion of the knee extensors were measured using a modified Thomas test and Ely's test. The isokinetic strength of the extensors and flexors muscles of the knee joint and the H/Q ratio were measured using a Humac Norm isokinetic dynamometer. Results: Measurements showed that the foam roller affected the range of motion of the flexors and extensors...

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