Ключевые слова: active, adult athlete, black belt, blue background, children athletes, coach, combat sport, epidemic, formal exercises, health, jiujitsu, karate, karategi, karateka, kombat arts, kombat martial, kombat sports, lessons, man, martial arts, martial sports, mix fight, mma, professional, punch, quarantine, sambo, selfdefense, selfisolation, sensei, sport, sport arts, sports kids, sportsman, teacher, teaching, young athlete,