Ключевые слова: active, activity, adult, athlete, athletes, before, body, challenge, class, course, cross, endurance, energy, equipment, exercise, exercising, female, fit, fitness, friends, friendship, getting, group, health, healthy, indoors, instructions, instructor, leisure, lifestile, male, man, muscular, people, physical, slim, smiling, sport, sports, sportsman, strength, talking, together, trainer, training, woman, workout, young,