ABSTRACT
In the first part of the master's thesis, we defined the concept of a healthy lifestyle, described
its factors and the meaning of a healthy lifestyle, based on the review of scientific literature. A
healthy lifestyle includes diet, physical activity, and various habits and vices of an individual,
including sleep, use of electronic devices, smoking and alcohol consumption. In the second
part, we focused on empirical research, where we were interested in what the healthy lifestyle
of children and adolescents is, what is their attitude towards a healthy lifestyle, and how the
healthy lifestyle of physically active and inactive children and adolescents differs. In the
group of physically active children and adolescents, we included all those who, at the time of
the research, were enrolled in any of the sports associations or clubs. Since the research was
conducted during the coronavirus epidemic and related measures to limit the spread of the
virus, we were also interested in how this affected their lifestyle. We used a purposive
sampling method, and the data were obtained with the help of a questionnaire. Children and
adolescents of both sexes between the ages of 10 and 15 are included in the research. 250
respondents took part in the survey, of which 63.6% were boys and 36.4% were girls.
Physically active young people have a healthier lifestyle. In addition to more frequent
physical activity, the data show that the physically active group of young people also have
healthier dietary habits, they attach more importance to healthy eating, they eat breakfast
more often, they have a larger number of meals that are better distributed daily, and they
consume less foods that are not recommended to be consumed each week, such as salty
snacks, alcoholic beverages, energy drinks, and foods and beverages with more sugar. The
data show that physically active teenagers sleep longer on average and spend less time using
electronic devices. On average, they are also more satisfied with their lives and consider the
factors of a healthy lifestyle more important than the group of physically inactive young
people. We estimate that participation in a sports club is one of the key factors in the
formation of healthy lifestyle habits. Parents and the school environment are important factors
in raising awareness and encouraging young people to lead a healthy lifestyle. Sports
professionals and the sport itself can thus be additional factors that are very important.
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