Background Juvenile İdiopathic Arthritis(JIA) affects the quality of life to a significant degree causing the child to become less social.The family puts on an overprotective attitude. The importance of exercise is remarkable in these children. Clinical Pilates Exercises don’t generate fatigue and help inhibition of pain with respiratory control. This exercise is entertaining, and can be applied as a group. Even though pilates is used on adult rheumatic patients, there is no study in JIA.