Ключевые слова: active, activity, advertisement, arena, athlete, athletic, athletics, background, backgrounds, blue, color, colorful, competition, concept, empty, event, exercise, field, fitness, ground, health, healthy, healthy lifestyle, lane, line, nobody, number, outdoor, outdoors, race, recreation, red, rubber, run, school, speed, sport, sprint, stadium, start, success, surface, texture, track, track and field, training, treadmill, vibrant, white, white markings,