Ключевые слова: activity, adult, athlete, athletic, belgium, brussels, caucasian, challenge, city, competition, fitness, full, gate, group, half, handsome, health, healthy, jogger, jogging, legs, leisure, length, lifestyle, male, marathon, men, motion, muscular, nature, outdoors, people, person, race, recreation, road, run, runners, shoes, speed, sport, street, strength, strong, training, urban, wellbeing, young,