elderly men or women or young people have knee, ankle, joint pain, arthritis, and tendon problems. exercise-induced muscle pain

accident ache acid ankle arthritis asian athlete background body bone broken chronic cramp disease elderly exercise-induced fitness gout hand health human inflammation injury isolated joint knee leg limb man medical medicine men muscle old orthopedics osteoarthritis pain people person physical problems runner senior sitting sore sport sprain suffering symptom tendon therapy treatment uric white woman women young