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The effectiveness of dietary supplements for athletes
Papanikolaou, Stefan ; Vilikus, Zdeněk (advisor) ; Novák, František (referee)
This thesis is dealing with a handful of supplements for athletes. To make the selection as useful as possible, I basically chose the supplements according to their representation in a few sport centers. On these foundations, I made the decision which supplements to research. Then I created system-reviews for each of the supplements using PubMed. The next step was to find out the real efficiency of these supplements. The aim of the conclusion was to say if each of the supplements is useful and for whom. Most of the supplements shown to be beneficial, though some of them in different ways than sometimes expected. An often issue may be that the supplements are useful only for specific use - for specific athletes, or under specific conditions. This thesis is more of a review essay, but in the end, there is a simple tutorial. keywords: active ingredients, sport, sport performance, sport supplements, supplement
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The effectiveness of dietary supplements for athletes
Papanikolaou, Stefan ; Vilikus, Zdeněk (advisor) ; Tuka, Vladimír (referee)
This thesis is dealing with supplements specifically the ones for athletes. To make the selection as useful as possible, I basically chose the supplements according to the sales in sport centers. On these foundations, I made the decision which supplements to research. The next step was to find out the real efficiency of these supplements and if the dosage is set properly. To do so I went through existing science papers, meta-analysis when available, and I made a conclusion. The aim of the conclusion was to say if each of the supplements is useful and for whom. Most of the supplements shown to be beneficial, though some of them needed correction in labeling. Concretely the advertised effects and the dosage needed to be refined. But some of the supplements shown as unadvisable at all. An often issue was that the supplements are useful only for specific use - for specific athletes, or under specific conditions. This was not clearly stated by the producers. And so, some of the supplements will not be beneficial in ways athletes may expect. This thesis is more of a review essay, but in the end, there is a simple tutorial. keywords: active ingredients, sport, sport performance, sport supplements, supplements
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Consumption of food supplements for different groups of clients fitness center
Tůmová, Olga ; Svačina, Štěpán (advisor) ; Vilikus, Zdeněk (referee)
This bachelor thesis deals with the consumption of dietary supplements for different groups of fitness center clients. The work is divided into theoretical and practical part. The theoretical part focuses on the basics of nutrition, and is described by energy intake and expenditure, macronutrients (carbohydrates, proteins and fats), micronutrients (vitamins and minerals) and drinks. The following chapter describes the basic supplements most commonly used in fitness. The practical part was processed using a questionnaire on social networks and in the fitness center Kentoya, Prague 10. The aim was to explore the most commonly used supplements, assessment of knowledge of the main effects of the supplements and visitors' experience with diets. The results are reported in tables and graphs and the answers on the internet and in the fitness center Kentoya are compared. The results show that almost 79 % of visitors to the fitness center take dietary supplements, the most widely used supplement is a protein drink. Approximately 67 % of visitors were during their life on some kind of diet and unfortunately the most common source of information concerning diet is the internet. Keywords: fitness, food supplements, supplements, nutrition, fluid intak
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Nutritional habits of Czech athletes with focus on nutrition supplements use.
Ticháček, Jiří ; Coufalová, Klára (advisor) ; Petr, Miroslav (referee)
Title: Nutrition habits of Czech athletes with focus on nutrition supplements use. Objectives: The aim of this work is to map the eating habits and nutrition supplements use by athletes in the Czech Republic. Methods: In this work, we have used the method of public inquiry. The inquiry was distributed over many sport centres and facilities around the Czech Republic. 1373 inquiries were opened and 1064 of them returned filled in. The revision of the returned inquiries with sorting out only properly filled in ones, which provided the required information for further analysis, followed subsequently. There were 1027 inquiries from athletes from 75 cities of the Czech Republic used. 752 men and 275 women (age 7 to 54 years) from sports: athletics, basketball, football, handball, judo, swimming, taekwondo, triathlon and volleyball have participated the survey. Results: We found out, that approximately 79 % of Czech athletes do care about their nutrition and keep to the consummation of 4 to 6 meals per day. Semi - occasionally people choose the second dinner as a meal in their regime, only 30 % of respondents abide to this. Various "dietary programmes" were at some time in life tried mostly by women, where the frequency rises with the age. However, only around 26 % of the athletes have ever tried one of...
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Food supplements and their use for influencing physical fitness
Ješko, Václav ; Bunc, Václav (advisor) ; Černá, Sylvie (referee)
The title of the thesis: Food supplements and their use by people attending fitness centers The aim of the thesis: The aim of the thesis is to collect information about food supplements and determine which food supplements are the most frequently used in fitness centers. The methods of the thesis: By the controlled interview to determine what types of food supplements are the most frequently used by people attending fitness centers. The results of the thesis: The majority of people visiting fitness centers use some kind of food supplements. Keywords: food, macronutrients, micronutrients, supplements, fitness center, recommended daily doses.
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Creatine and Carnitine Use in Sport
Vodičková, Věra ; Vilikus, Zdeněk (advisor) ; Boudová, Lea (referee)
5 Abstrakt Kreatin je z 95 % obsažen v kosterních svalech, kde je z 65 % fosforylován na kreatinfosfát. Denní potřeba 2 g je kryta příjmem z potravy a biosyntézou. Systém kreatin - kreatinfosfát slouží ve svalech pro rychlou regeneraci ATP, pro vyrovnávání pH a podílí se na růstu svalové hmoty. Základní a prokazatelně účinnou formou suplementů je kreatin monohydrát, jiné preparáty nejsou účinnější. Podávání kreatinu je bezpečné, potvrzeným nežádoucím účinkem je pouze nárůst hmotnosti a trávící obtíže. Je prokazatelně efektivní pro zvýšení výkonnosti, zejména při opakované krátkodobé intenzivní zátěži a v silových disciplínách. Nejúčinnějším postupem podávání je využívání tzv. plnící fáze, následované fází udržovací a pauzou, které se v cyklech opakují. Účinnost zvyšuje současné podání sacharidů. Nárůst výkonnosti koreluje s velikostí nárůstu obsahu kreatinu ve svalech, která závisí na velikosti jeho zásob před zahájením suplementace. Karnitin se vyskytuje ve dvou optických formách, ovšem pouze L-forma je metabolicky účinná a bezpečná. Jeho hlavní funkcí je přenos aktivovaných mastných kyselin do matrix mitochondrie, kde probíhá jejich β-oxidace. Denní potřeba karnitinu je z 25 % kryta biosyntézou, zbylých 75 % ...
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