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The influence of diet on the absence and recovery of the menstrual cycle
MARTINÁSKOVÁ, Markéta
The aim of my Bachelors thesis was to find out what effect diet has on menstrual cycle loss and what effect diet has on menstrual cycle repair. Eating disorders, malnutrition, alternative diets, low body fat, hormonal contraceptives, stress, reduced energy intake and excessive physical activity can have a negative impact on the menstrual system. One of the most common forms of secondary amenorrhea is functional hypothalamic amenorrhea. Low level of estrogen occur, which has a negative effect not only on the reproductive system of women, but also on their overall health. Secondary amenorrhea that lasts 6 months or more results in thinning of the bones (osteoporosis) in postmenopausal age. Early therapy is necessary for the proper function of the female reproductive system. In the practical part, I evaluated a questionnaire of my own design and analyzed the diet records from respondents who have faced or are facing loss of menstrual cycle. The results of my questionnaire investigation confirm the negative impact of the above mentioned factors on menstruation. More than half of the women interviewed have experience of eating disorders. Almost 1/3 of the women are on a reduction diet. The daily energy intake of some of the respondents is below 1500 kcal. The vast majority of the women participate regularly in sports. More than 1/2 of the women experience frequent fatigue, stress and were facing difficult life situation at the time of loss of menstruation. Only less than 1/4 of the respondents use hormonal contraceptives or have an IUD in place. According to the questionnaire survey, more than half of gynaecologists do not deal with loss of menstrual cycle. After evaluating individual diets, it is clear that loss of menstrual periods occurs with low energy intake. By increasing energy intake, menstruation returns.
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The influence of the menstrual cycle on the track and field athletic performance of top athletes
Musilová, Eva ; Kaplan, Aleš (advisor) ; Vindušková, Jitka (referee)
Title: The influence of the menstrual cycle on the track and field athletic performance of top athletes Objectives: The main goal of the bachelor's thesis is based on information gathered by the study of foreign and domestic sources to describe whether and to what extent the menstrual cycle and its individual phases affect the athletic performance of top athletes in training and competition. The secondary goal is to de-taboo the issue, to offer not only female athletes and their coaches ways to make the most of the natural cyclicality of female athletes, to draw attention to serious health complications resulting from insufficient erudition about the issue. Methods: An overview study based on a search of foreign language and domestic articles and monographs dealing with the issue of the menstrual cycle in top athletics, resp. in elite sports for the period 1991-2022. Results: Based on a survey study of a total of 22 foreign-language and 57 Czech sources, it can be stated that we encounter more specific issues of the menstrual cycle in women's elite sports in foreign-language literature than in domestic. Foreign authors come up with more controversial hypotheses and embark on more controversial research, the results of which are often very surprising. On the other hand, Czech-speaking authors...
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The role of adipose tissue in the pathophysiology of obesity and anorexia nervosa
Kratochvílová, Helena ; Haluzík, Martin (advisor) ; Pavlišová, Jana (referee)
The view of adipose tissue and its significance in human pathophysiology has changed substantially in the recent couple of years. It has been shown that adipose tissue is not only a passive storage site for excess energy, but that it actively participates in the maintenance of whole-body homeostasis as an endocrine organ producing various hormones and other biologically active molecules, which by acting in an endocrine, paracrine as well as autocrine fashion affect different organs and systems. An intact regulation of adipose tissue processes plays an important role in sustaining the integrity of the organism, whereas its defects lead to the development of a number of diseases. This thesis focuses primarily on the significance of adipose tissue in the pathogenesis of obesity and anorexia nervosa. In the last years, the incidence of obesity rapidly increases ranking, along with its complications, among the world's leading health problems. Obesity is associated with endocrine dysfunction of adipose tissue characterized by disrupted production of adipose tissue hormones and cytokines resulting in the development of numerous disorders including type 2 diabetes mellitus and cardiovascular diseases. A completely opposite disorder, where, however, adipose tissue, or more precisely the absence of it, plays...
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