Ключевые слова: activity, asian, bodybuilding, boys, caucasian, childhood, children, class, copy space, daylight, daytime, dumbbells, elementary age, emotion, emotional, european, exercise, exercising, fitness, footwear, front view, gesture, group, gym, hands in air, indoors, kids, multicultural, multiethnic, preteen, smile, smiling, sneakers, sport, sport equipment, sporting, sports center, sportswear, step aerobics, step platforms, together, togetherness, training, two people, working out, workout, youngsters,