Ключевые слова: action, active, activity, alternate, asphalt, athlete, autumn, biathlon, boots, city, cross, crosscountry, exercising, healthy, leg, nordic, outdoors, poles, preparation, race, road, roll, roller, rollerblading, rollerski, run, skate, skater, skating, ski, skier, skiroller, sport, sportsman, technique, training, wheels, wheelss,