Discussion
JIA, pain
Particular attention will be paid to the period chosen for the beginning of this study in order to avoid bias. To this end, the program will be implemented after the summer vacation, at a time when children are available, and to be representative of usual activity. The study will take place over a period of 50 weeks ± 1 week, including 12 weeks with APA sessions. The few studies performed on this subject to date conducted the APA program over 10 to 48 weeks (A recent review of literature on this subject (Concerning the APA sessions, the exercises proposed will be aerobic exercises, for physical endurance, and bodyweight training, for physical strength, as we expect greater improvement in these two skills. The progress in terms of physical strength (evaluated by dynamometry) should be of lesser magnitude than the progress in physical endurance (qualitative criterion evaluated over APA sessions), due to the choice to propose aerobic and bodyweight exercises. Aerobic exercises develop physical endurance whereas body weight exercises focus on physical strength (In addition to the variation in clinical parameters (quality of life, muscle strength, pain, functional capacity) as shown in Expected benefits of physical activity in patients with JIA.