Ключевые слова: ache, adult, arthritis, asian, athlete, back, backache, body, chinese, city, cramp, ethnicity, exercise, hands, health, holding, hurt, inflammation, japanese, jogging, korean, man, marathon, massaging, medicine, men, morning, muscle, outside, pain, people, person, physical, problem, rheumatism, road, runner, spinal, spine, sport, sprain, standing, stretching, suffering, symptom, tension, training, trauma, urban, young,