Ключевые слова: action, activity, adults, athlete, bicycle, bike, body, caucasian, coach, cycle, cycling, endurance, equipment, exercise, exercising, females, fitness, girls, group, gym, happiness, health, healthy, human, indoors, instructor, lifestyles, light, machinery, males, men, motion, moving, muscle, muscular, people, person, power, shape, slim, smiling, sports, trainer, training, wellbeing, women, young,