Ключевые слова: 1, 2018, 400 m, athlete, athletics, back, block, championships, competition, competitive, dynamic, explosive, fast, feet, field, final, finish, hurdles, leader, legs, line, male, man, men, meters, motion, one, outdoor, people, race, real, record, run, runner, runners, running, shoe, speed, spikes, sport, sprint, sprinter, stadium, starting, summer, track, winner, world,