Ключевые слова: active, adult, african, american, arthritis, athlete, bad, black, cgi, closeup, cramp, discomfort, exercise, exercising, feeling, female, fit, fitness, healthy, highlighting, holding, hurt, injury, jogger, joint, knee, leg, multiracial, negative, outdoors, outside, pain, people, person, runner, running, sore, sport, sports, sporty, stiffness, struggling, suffering, superimposed, symptom, touching, training, unrecognizable, woman, women,