Ключевые слова: accident, ache, adult, athlete, athletic, back, backache, body, cramp, exercise, female, fit, fitness, girl, health, healthy, hurt, injured, injury, jog, jogger, jogging, lifestyle, lower, lumbar, medical, muscle, muscular, outdoor, outside, pain, painful, people, person, physical, problem, run, runner, running, sore, spine, sport, sprain, strain, training, woman, women, workout, young,