Fitness is, first of all, a healthy way of life. Fitness is a person's response to the growth of life. The desire to be in shape is a natural desire, especially relevant now that illness and bad habits have become a real luxury. Fitness - a chance to change the quality of life without radicalism and excessive effort; the most perfect training system to date, which has absorbed all the most effective methods of "body education" (Medina EN 2000). There is no single and final definition of fitness. There is still a discrepancy even in the spelling of the word "fitness".
 The English language often uses the expression "To be fit", which can be translated as "to be in shape". In the textbook (Hawley ET, Franks BD 2000) "Health Fitness" you can read the following definition of different categories of fitness: general fitness - is the pursuit of optimal quality of life, including social, mental, spiritual and physical components. The term "positive health" is also used.
 Physical culture, being one of the facets of general culture, largely determines human behavior at work, in education, in everyday life, in communication. The development of physical culture and sports is one of the most important components of a strong social policy that can ensure the real implementation of humanistic ideals, values and norms, open a wide space for identifying people's abilities, meeting their interests and needs.
 Nowadays, sport has become more and more part of people's lives. Deep study of human physiology makes theoretical justifications in sports. Trainings are thought over so that they most organically fit into the general vital activity of a human body. Classes began not only to be guided by the principle of "do no harm", but also seeks to bring the greatest benefit to man. Probably, it is possible to notice that one of theoretically the most substantiated kinds of sports now becomes fitness. It should also be noted that fitness is a sport that, in addition to physical satisfaction, brings moral satisfaction.
 Nowadays, sport has become more and more part of people's lives. Deep study of human physiology makes theoretical justifications in sports. Trainings are thought over so that they most organically fit into the general vital activity of a human body. Classes began not only to be guided by the principle of "do no harm", but also seeks to bring the greatest benefit to man. Probably, it is possible to notice that one of theoretically the most substantiated kinds of sports now becomes fitness. It should also be noted that fitness is a sport that, in addition to physical satisfaction, brings moral satisfaction.
Read full abstract