Ключевые слова: accident, ache, anatomy, athlete, back, black, body, bone, emergency, exercise, fitness, health, hurt, inflammation, injured, injury, jogger, jogging, joint, knee, leg, lying, male, man, marathon, medical, osteoarthritis, outdoor, pain, people, physical, problems, run, runner, sit, sore, sport, sports, sports clothes, sprain, strain, suffer, suffering, tendon, train, training,