Ключевые слова: ache, adult, age, athlete, back, backache, background, body, caucasian, city, concept, exercise, fit, fitness, friends, green, grimacing, hand, health, health and fitness, healthy, hispanic, hurt, injury, jogger, jogging, joint, lower back, massage, mature, medical, muscle, muscular, neck, orthopaedic, pain, painful, park, people, person, pulled, runner, running, sport, street, suffering, unhealthy, urban, woman, young,