Ключевые слова: ache, arthritis, back, burden, caucasian, cramp, cutout, disease, dorsalgia, effort, female, hand, head, healthy, hip, hurt, ill, injury, joints, lumbago, medical, office worker, pain, painful, pangs, people, problem, sick, side, sore, spine, stand, stitch, stress, suffer, tense, tension, waist, woman, young,