Ключевые слова: 2017, adult, aged, asphalt, athlete, athletic, caucasian, city, competition, competitive, distance, elderly, endurance, european, exercise, jogging, male, man, marathon, men, old, olden, outdoor, people, race, rain, real, rivalry, road, run, runner, runners, running, russia, senior, shoe, sport, sportswear, street, town, track, world, young,