Children with JIA have, from time to time, a number of valid reasons to be excused from participation in PE or gym class. Children with JIA can have increased aches and pains in muscles or joints that make participation in certain types of physical activity (e.g. running, jumping) difficult. Other times, stiffness or restriction of range of a joint might also limit certain types of activities for a child. These symptoms can come and go at various times throughout the course of their chronic disease.

Furthermore, during a new or worsening flare of arthritis, when the joint is very swollen and tender, it is often a good idea to back off of some of the physical activities, including PE classes and other sports. In addition to increased pain, when a joint flare is occurring, the muscles around the joint are often not working as effectively and could pre-dispose a child to other sports injuries. More gentle activities, such as swimming or walking, can still be done quite safely.