Ключевые слова: active, activity, athlete, boy, cardio, cardiovascular, caucasian, child, childhood, exercise, fit, fitness, goal, hobby, kid, leisure, male, muscle, muscles, muscular, outdoor, outside, people, player, portrait, practice, rope, run, skip, skipping, sport, sporting, sports, sporty, summer, teen, teenage, teenager, train, training, warm, young, youth,