Ключевые слова: adult, belt, boxer, boxing, cardio, caucasian, child, childhood, children, combination, concentration, defence, diet, energy, event, females, fight, fighting, fitness, girl, glove, gloves, group, happy, health, hobbies, independent, indoors, instructor, jab, knockout, lifestyle, males, man, pastime, punching, referee, ring, small, smiling, strategy, teenage, teenager, teenagers, toughness, trainer, uppercut, workout, young,