Effectiveness of the main physical qualities of athletes who are engaged in marathon running

The article examines the main physical qualities of athletes involved in marathon running. Marathon running is a type of running competition in athletics, which consists of covering a distance of 42 km 195 m. Marathon running competitions, according to the length of the distance and the time it takes to cover it, are the longest and most prolonged among other running events in the Olympic Games program (since 1896 for men, since 1984 for women) and, accordingly, require the highest level of endurance development of the athlete. The purpose of the study is to assess the level of activity of a marathon runner. In order to show your best result, you need to achieve a certain level of development of physical qualities. The focus is on endurance - as the main quality in marathon running and its development directly through physical exercises.