Ключевые слова: ache, activity, adult, arm, arthritis, athlete, background, body, bone, care, caucasian, day, discomfort, elbow, exercise, fitness, health, hurt, illness, injury, leisure, lifestyle, male, man, mat, medicine, muscle, nature, outdoors, pain, park, person, physical, problem, refreshment, rheumatism, sore, sport, strain, stretch, suffering, symptom, tired, training, wellness, workout, yoga, young,