Ключевые слова: ache, adult, arthritis, back, back pain, backache, background, brazilian, chiropractor, colombian, concept, disease, fracture, frustration, hurt, inflammation, injured, injury, latin, latin america, male, man, massage, medicine, mexican, muscle, muscular, neck, nude, office syndrome, pain, painful, peruvian, problem, rheumatism, sad, serious, sick, south america, spine, suffer, symptom, touch, trauma, uncomfortable, unhappy, upset, waist, worker, wrist,