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Možnosti využití sladu pro sportovní výživu
Mišúnová, Lucie
The diploma thesis on “Possibilities of using malts for sports nutrition“is focused on the production of malts and their use in sports supplements. The theoretical part is devoted to individual cereals and pseudocereals, their nutritional composition, individual nutri-ents and their importance in nutrition and some possible products for sports nutrition. The practical part includes the production of single malts from selected cereals and pseudocereals and the production of experimental products that could have applications in sports nutrition. The products were then analysed for sensory analysis and nutritional value was determined.
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Mastné kyseliny se stredne dlhým reťazcom v športovej výžive
Styková, Veronika
Abstract The first part of this diploma thesis "Medium Chain Fatty Acids in Sports Nutrition" focuses on a literature research of topics regarding rational nutrition and its history, the importance of fats in nutrition, a more detailed review of fats in sports nutrition. It also describes the impact of medium-chain fatty acids (MCTs) on the human body and on performance in sport. The practical part of the work focused on the design of a suitable methodology for the determination of fatty acids and the analysis of available MCT-containing dietary supplements by using gas chromatography. Based on the measurement results, the fatty acid profile of the samples was evaluated, a statistical evaluation was performed and the measurement results were compared with the nutritional information of the products as labelled on the product packaging. The diploma thesis also included a questionnaire that was designed for a general audience in order to determine the knowledge of supplements and the popularity of dietary supplements containing MCTs. The aim of this thesis was to provide as comprehensive an overview as possible of medium chain fatty acids and their impact in sports nutrition by using a various information sources, and to determine whether respondents had an overview of MCTs based on the questionnaire and to conduct an analysis of fatty acids in MCT-containing products.
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Nutritional deficiences in vegan endurance athletes
Knížková, Šárka ; Heniková, Marina (advisor) ; Koudelková, Kateřina (referee)
Aim: This study aimed to investigate whether vegan endurance athletes, specifically runners, experience nutritional deficiencies due to a purely plant-based diet. Partial goals were set to evaluate whether these athletes have sufficient energy intake and receive adequate macronutrients and risky micronutrients. Methods: The research was conducted as a pilot study for the extensive European project VEGANScreener. Based on the completed questionnaire and meeting the criteria, 11 participants (n = 11) were selected. The subjects underwent body composition analysis using bioimpedance, their resting energy expenditure was measured by indirect calorimetry, and blood was taken. The subjects then performed a 4-day food record (self-reported 4-day Dietary Record), which was analysed using new software. The complete dietary record was analysed for only eight subjects (n = 8). Nutritional data were analysed using the left-sided Mann- Whitney U test, which belongs to the group of non-parametric tests. The test was conducted at a significance level of α = 0.05. Results: The average BMI of the subjects was 20.87 ± 1.58 kg/m2. Two subjects (n = 2) had a lower body fat percentage than is adequate. The biochemical blood test results indicated a possible vitamin D and iron deficiency. When comparing actual energy...
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The issue of vitamin D in elite sport
Káchová, Nikola ; Dostal, Jiří (advisor) ; Kalendová, Barbora (referee)
Vitamin D is a fat-soluble vitamin that can be synthesized in the skin after exposure to sunlight or obtained through food or supplements. The aim of this study was to investigate the effect of 14 days of sun exposure in an area with higher levels of UV radiation (Dubai, United Arab Emirates) on vitamin D concentrations in a selected group of water slalom athletes and to further evaluate the changes in concentrations after a further 14 and 30 days after return. Data for the study were obtained by using four blood draws and comparing the average vitamin D concentration between the blood draws. Eleven elite athletes aged 18-35 years who were not taking vitamin D supplements participated in the study. The results showed that before the intervention, the athletes had average vitamin D levels lower (69.4 nmol/l) than the lower reference limit set at 75 nmol/l. Exposure to sunlight for 14 days resulted in a significant increase in vitamin D concentration, with an average increase of 10.8 nmol/l in the study group. Upon return to the Czech Republic, the vitamin D level increased slightly by an average of 0.7 nmol/l for 14 days, but this increase was not statistically significant compared to the previous sampling. After 30 days of stay, the vitamin D level decreased on average by 1.3 nmol/l. This result...
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Myths in sports nutrition
Seger, Jakub ; Kinkorová, Ivana (advisor) ; Jandová, Tereza (referee)
Title: Myths in nutrition Objectives: The aim of this thesis is to define and analyse the most common myths about nutrition that are commonly encountered on websites, social networks or in popular science literature. I will then seek to confirm or refute these claims by reviewing the available scientific evidence. Methods: Research Keywords: sports nutrition, protein, anabolic window, evening meal, protein before bedtime, effects of creatine, gluten-free diet, fats
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Sports nutrition supplements and their use among junior and senior rowers i Czech Republic
Ondráčková, Eliška ; Kinkorová, Ivana (advisor) ; Macas, Tomáš (referee)
Title: Sports nutrition supplements and their use among junior and senior rowers in Czech Republic Objectives: The main aim of this thesis is to compare the use of sports nutrition supplements in junior and senior rowers categories in the Czech Republic. Methods: In this thesis, a comparative study was used in which an online survey method was used in the research. Data was collected using a survey that participants completed independently online. The survey was placed in a Google forms environment. The link to the survey was disseminated among the research participants through social networking sites. Results: The results of the survey showed that 75 % of the respondents use sports nutrition supplements, with almost half of them using them more than once a week between 2 and 5 years. The required number of junior rowers did not participate in the survey, so we can assume that there are more rowers in the senior category than in the junior category. For this reason, the results of the survey were processed on rowers in general. The respondents use sports nutrition supplements most in the preparation period, and the most used supplements are protein preparations. The most frequently described observed effects of sports nutrition supplements are both a better feeling of performance and a feeling of...
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Analysis of the diet habits of an endurance athletes in the youth and junior categories
Gräfová, Martina ; Červinka, Pavel (advisor) ; Kotlík, Kamil (referee)
Title: Analysis of dietary habits of cross-country skiers and biathletes in youth and junior categories Aims: The theoretical part of this diploma thesis summarises information on the nutrition of endurance athletes. The practical part analyses and evaluates the dietary habits of Czech cross- country skiers and biathletes of youth and junior categories during the preparatory phase, focusing on food composition, the ratio of individual nutrients, use of nutritional supplements and fluid intake. Methods: Eighteen men and thirteen women participated in the study. It was conducted via a questionnaire based on open-ended questions. The questionnaire focused on information about the male and female respondents necessary to conduct the research, their dietary intake, including fluids, nutritional supplements, and physical activity over a two-week period. Results: Most athletes, especially women, ingest insufficient dietary energy compared to their estimated energy expenditure. They consume most of their calories in the latter part of the day, most at dinner. Of the macronutrients ingested, only the amount of carbohydrate is insufficient. In contrast, the amount of protein is above the recommended amount for most men and women. Despite the fact that endurance sportsmen and women need a higher fluid intake...
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Use of Food Supplements in Sportsman's Diet by a Selected Group of University Students
Staropražská, Barbora ; Marádová, Eva (advisor) ; Kovaříková, Miroslava (referee)
TITLE: The Use of Food Supplements in Sportsman's Diet by a Selected Group of University Students AUTHOR: Barbora Staropražská DEPARTMENT: Department of Pedagogy SUPERVISOR: PaedDr. Eva Marádová, CSc. ABSTRACT: The bachelor's study deals with general rules for the sportsman's diet and the use of food supplements for the purpose of improving man's health or increasing sport performance. Theoretical part of the study provides information about appropriate composition of macro- and micro- substances in the food, proper drinking regime and presents basic mistakes that people usually do in eating. Further, the study includes general recommendation on how to correctly eat before, during and after the sport performance. Last but not least, the study introduces basic food supplements, their classification and describes the most important agents and their impacts on the human body. Practical part of the study is focused on a research of the health lifestyle of the Prague's university students, whose aim is to find out how they are interested in healthy food, whether they perform sports regularly and whether they use food supplements. For this purpose, a questionnaire's survey was performed, whose results are discussed in the conclusive part of the study. Based on the answers obtained, it can be concluded that the...
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Nutrition monitoring in top women white water slalom athletes in the race period of the season.
Kašparová, Anna ; Polášková, Marcela (advisor) ; Süss, Vladimír (referee)
Title: Nutrition monitoring in top Czech Republic women white water slalom athletes in the race period of the season. Aim of the study: Comparison of actual quantitative and qualitative composition of the diet in the Czech water slalom paddlers (women) in the racing period to daily recommended standards for the population group of athletes with a corresponding energy output. Using the results, create both general and individual recommendations and assess the need for the use of supplements in the diet of water slalom athletes. Methods: The thesis is a case study and it is a kind of qualitative research. For our study we chose two main methods. Prospective study method and the method of interview. To determine the total daily energy intake and diet quality inventorial analysis of the four- day dietary record of the respondents was used. For comparison with the standards, the data were subsequently processed by standardized software applications of database functions MS Excel (Vilikus a kol., 2002) and accompanied by a critical commentary. To survey the data concerning use of food supplements has been used a method in which athletes respond to questions asked. The data were assessed in writing and graphically. Results: Our study shows and critically comment on the differences between recommended and...
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