Ключевые слова: ache, adult, age, back, backache, background, body, care, caucasian, cramp, disc, disease, female, fitness, hand, health, healthy, hurt, illness, injury, isolated, low, lumbar, male, man, massage, medical, medicine, muscle, muscular, office, outside, pain, painful, people, person, physical, problem, rheumatism, sore, spine, sport, suffering, symptom, therapy, torso, touching, unhealthy, white, young,