Ключевые слова: active, adult, backache, background, businessman, cane, casual, city, concept, day, disability, diseases, elderly, europe, feet, foot, gentleman, joint, lameness, legs, lifestyle, limp, lonely, male, man, old, outdoor, outdoors, pain, person, retiree, russia, senior man, shadow, shoes, sick, sidewalk, spine, spring, stick, street, summer, tiles, tired, trousers, walking, walking cane,