Ключевые слова: activity, architecture, athlete, backgrounds, black, blue, body, build, building, club, dark, design, domestic, dumbbell, empty, entrance, equipment, exercising, floor, flooring, gym, gymnasium, health, healthy, heavy, image, indoors, kettlebell, lifestyle, lifestyles, metal, modern, motion, muscular, people, reflection, room, school, sitting, sport, sports, steel, strength, structure, toned, training, wall, window,