Ключевые слова: air, asphalt, athlete, begin, blue, boots, bottle, competition, energy, equipments, fashion, flat, hard, headset, joints, knees, legs, light, men, mp3, muscular, music, number, one, outside, oxygen, plastic, positive, preparation, race, resistance, resistant, run, runner, shoe, soft, speed, sport, start, strength, style, surface, sweat, time, training, water, wind, women,