Ключевые слова: adult, age, backache, cane, care, casual, city, day, diseases, elderly, feet, healthy, joint, lameness, legs, lifestyle, limp, limping, male, man, old, old man, outdoors, pain, pavement, paving, pension, pensioner, person, retiree, road, senior adult, shoes, sick, stick, street, tired, walk, walking, walking stick, walkway,