Cognitive Exercise Therapy Approach (*Bilişsel Egzersiz Terapi Yaklaşımı*-BETY), an innovative method developed for adults with rheumatism, aims to promote behavioral change and prevent social isolation by focusing on exercises that provide pain management and functional gains. BETY also recognizes the importance of family education in achieving these goals. However, there is a need for studies on exercise approaches that fit the biopsychosocial model, such as BETY in childhood rheumatic diseases.

BETY is an innovative exercise approach based on the biopsychosocial model that aims to change the patient's cognitions through exercise, specifically developed for patients with rheumatism. This approach includes function-oriented trunk stabilization exercises, chronic pain management, and authentic dance therapy training targeting positive cognitive displacement. It is carried out in a routinized structure that continues for years on a face-to-face basis in groups and individually.

Interventions that provide physical and psychosocial support are needed in childhood rheumatic diseases. Learning to exercise the muscles surrounding the joints at the proper traction angle through exercise with BETY, gaining the ability to manage chronic pain during the day, gaining positive cognitive displacement skills, and having the opportunity to socialize through both individual and group exercises constitute the basis of the intervention.

Inclusion Criteria:

• Diagnosed with JIA,
• Aged between 7 and 18,
• Individuals who volunteered to participate in the study.

Exclusion Criteria:

• Patients with advanced heart/lung/liver/kidney disease, neurologic disease and malignancies,
• Individuals who have undergone major orthopedic surgery.

Will not be shared to protect the data of individuals