National Repository of Grey Literature 36 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
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)
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
Verification of hyperoxia influence on performance in the team sprint modified for SkiErg
Schützová, Sandra ; Suchý, Jiří (advisor) ; Gnad, Tomáš (referee)
Title: Verification of the effects of hyperoxia on the result in a test simulating performance in a team sprint on SkiErg skiing simulator. Objectives: The work aims to verify the effect of hyperoxia on the result in a test simulating performance in a team sprint on SkiErg skiing simulator. Methods: This is a qualitative research conducted by comparing hart rate, power in watts and lactate in ten probands. Values measured after inhalation of concentrated oxygen and placebo were compared. Results: There was no positive effect from meansurements of the heart rate, power in watts and lactate after concentration of inhaled oxygen and placebo on the SkiErg simulator. We concluded that the effect of inhalated concentrated oxygen Was in our test statistically insignificant. Keywords: Cross-country skiing, strengh, hyperoxia, heart rate, lactate
Comparison of load during diagonal striding and double poling on the roller ski during sprint
Čechová, Anna ; Suchý, Jiří (advisor) ; Gnad, Tomáš (referee)
Title: Comparison of internal loading on the organism by double poling and diagonal striding during the sprint on the roller ski Objectives: The aim of the diploma thesis is to compare the internal loading using the Cortex Metamax 3B and the SenzoStar GL devices in a two-hundred meters long section performed by the maximum effort between the double poling and diagonal striding about the 10.4% climb on roller skis. Methods: The diploma thesis is conceived as an empirical field research, the aim of which is to compare a double poling and diagonal striding in terms of internal loading on roller skis during sprint. The test subject will be a group of cross-country skiers and long-distance skiers. Results: Using the measured values of the internal loading and the measured time, we found differences during comparing the diagonal striding and double polling in specific values of SF, VO2 / kg, VE. the conclusion was that diagonal striding is faster than double poling to the uphill on roller skis. Keywords: XC-skiing, roller skis, Cortex MetaMax 3B, oxygen consumption, heart rate, lactate
Nutrition of elite cross-country skiers in summer training
Pilná, Petra ; Coufalová, Klára (advisor) ; Kinkorová, Ivana (referee)
Title: Nutrition of elite cross-country skiers during summer preparation. Aims: The study aims to describe the nutrition of endurance athletes competing in cross-country skiing during summer training (season). Also, to discover what is the level of their energy balance and nutrient ratio. Lastly, to find out if supplements were used during the mentioned period. Methods: The research method was a structured survey consisted of open questions focusing on a type and quantity of consumed nutrition. Furthermore, the questions were centred around physical activity detailed of a concrete type, average heart rate, distance of taken mileage, intensity and calories burned. The questionnaire was sent electronically to five men who are among the representatives of the Czech Republic in cross-country skiing. Results: Three out of five elite cross-country skiers were in a negative energy balance of which the most significant difference between energetic expenditure and intake is 1338 kcal. The most notable differences were noticed in the consumption of carbohydrates opposite to the least difference in the protein intake. The percentual average of nutrients in the diet of all five elite cross-country skiers are 46,4 % carbohydrates, 34,4 % fats, 17,4 % protein of total energy intake. Four out of five respondents...
Comparison of dynamic ability in nordic skiing's disciplines
Kožíšek, Čestmír ; Gnad, Tomáš (advisor) ; Chrástková, Martina (referee)
Title: A comparison of dynamic abilities in nordic ski disciplines Aim: This dissertation aims to compare the dynamic abilities of cross country skiers and ski jumper in age between 12 to 15. Clarification of whether or not a training process of those two athlete groups has a crucial impact on the development of mentioned abilities compared to the other hobby sports group (target group). Methodology: This dissertation is conceived as empiric-theoretical. It analyses the results of samples to verify the hypothesis. There were three groups consisting of 10 samples (athletes) in total. The samples were tested in horizontal jumps (long jump, triple jump, multiple jumps) and vertical jumps (squat jump, counter movement jump). In all tests, it was decided to use only the best of all three attempts for the results. Findings: Development of dynamic abilities during the training process has a positive impact on their development in general. Both cross country skiers and ski jumpers achieved better results than the target group. Furthermore, ski jumpers performed better than cross country skiers. Keywords: physical health, sport performance, cross country skiing, ski jumping, squat jump (SJ), countermovement jump (CMJ), long jump, triple jump, multiple jumps
Inclusion of mental coach in the sports preparation of the Czech Republic A-Team in cross-country skiing
Sováková, Nikol ; Gnad, Tomáš (advisor) ; Jindra, Matouš (referee)
Title: Inclusion of mental mental coach in the sports preparation of the Czech Republic A- Team in cross country skiing Objectives: The aim of this work in to find out the justification of the need to include a mental coach in the sports preparation of the national team of cross-country skiing Methods: The research was carried out in the research design of grounded theory. As a method of data collection was used semi-structured interview, data were evaluated using open, axial and selected coding. Results: Basedon interviews conducted with twelve respondents (6 men and 6 woman), members of the czech republic national team of cross-country skiing, the inclusion of a mental coach in the preparation of the national team is desirable. Key words: cross-country skiing, psychological preparation, mental coach, sport performance
The comparison of the training preparation of cross-country skiers in distance and long-distance races
Lanková, Lada ; Gnad, Tomáš (advisor) ; Chrástková, Martina (referee)
Title: The comparison of the training preparation of cross-country skiers in distance and long-distance races. Objectives: The main goal of this thesis is to compare and evaluate the training preparation and the applied training means of two selected long-distance and the distance cross-country skiers. Methods: The case study, in which we will use the method of literary research, the data analysis method and the data comparison to evaluate the training preparation of the long-distance and the distance competitors. Results: By comparing the records of distance and long-distance cross-country skiers' training indicators, we conclude that the training of the long distance racer achieves larger volumes than the distance racer. Another surprising finding was the lower load intensities in training preparation of the distance competitor compared to the long-distance competitor. Keywords: cross country skiing, sport training, annual training cycle, training indicators.
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
Testing of dyspraxia in young cross-country skiers and in children and adolescents developing versatility
Novotná, Eliška ; Kraus, Josef (advisor) ; Zounková, Irena (referee)
In the theoretical part, the diploma thesis summarizes the findings of developmental dyspraxia or rather developmental coordination disorder and deals with the issue of physical activities in this disorder. One section of the theoretical part are the characteristics of the activities, that probands from the practical part of this thesis regularly do, and their possible use in intervention. The practical part deals with an evaluation of motor skills in young cross-country skiers and in children from movement versatility section of Sokol union. We used the Movement Assessment Battery for Children 2 for evaluation. The next aim is to determine whether the level of motor skills correlates with the level of attention, that we tested using Test od attention d2. The last aim is to determine whether the level of motor skills is different for boys and girls engaged in the same sport. No difference in level of motor skills between cross-country skiers and children from Sokol union was found. However, statistically significant difference between performance in the single components of the test MABC-2 was revealed, this difference was found in the component of balance. The correlation between the level of motor skills and attention was not proved. Neither the difference between the level of motor skills of...
Specific exercises on roller skis for nordic skiers (12-14 old)
Korbelář, Tomáš ; Suchý, Jiří (advisor) ; Gnad, Tomáš (referee)
Title: Specific roller skis' games and acitivities for young nordic skiers aged between 12 and 14 years Goal: Create and verify a collection of games and activities by experts on the rollers skis'for young nordic skiers aged between 12 and 14 years. Methods: A first method used in this work was available analysis of czech and international documents about games and activities. Then a collection of games and activities was made, which was customised for roller skis trainings. Furthermore, there was a verification of collection of roller skis'games and activities with the help of a board of experts composed of experienced and licensed nordic skiers'trainers and then nordic skiers'experts. An unstructured interview was made with them followed by a discussion about each game and activity. Results: In the first part there is a chapter about an equipment used collection created by us. The main part is made of a customised and verified collection of roller skis'games and activities for young nordic skiers aged between 12 and 14 years. Board of experts made a verification added their ideas and suggestions to specific games and activities in the form tips and suggestion. A new chapter dividing the collection was created as a result of a discussion with the board of experts was created at the end of a final...

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