Ключевые слова: ache, adult, aged, anatomy, asian, back, back ache, back pain, backache, body, bone, chronic, discomfort, disease, disorder, female, health, healthcare, home, hurt, illness, inflammation, injury, lumbar, massaging, mature, medical, medicine, muscle, pain, painful, person, physical, problem, rheumatism, rheumatoid, sick, sitting, skeleton, sofa, spinal, spine, stress, suffering, symptom, tension, tired, touching, unwell, woman,