Adolescent Idiopathic Scoliosis is a common musculoskeletal condition characterized by a three-dimensional spinal deformity, affecting approximately 2-4% of adolescents worldwide and occurring more frequently in girls. Beyond spinal curvature, Adolescent Idiopathic Scoliosis can negatively influence physical fitness, muscular strength, respiratory function, postural control, and participation in daily activities. These factors may reduce overall functional capacity and quality of life. Scoliosis-specific corrective exercises, including approaches such as Schroth and The Scientific Exercise Approach to Scoliosis, have been shown to improve postural symmetry, slow curve progression, and enhance respiratory and psychosocial outcomes. However, the effects of these exercises on physical fitness parameters-such as muscle strength, flexibility, motor performance, and cardiorespiratory endurance-remain insufficiently studied. The aim of this study is to investigate the effects of scoliosis-specific corrective exercises on physical fitness parameters in adolescents diagnosed with Adolescent Idiopathic Scoliosis. Measures of strength, flexibility, motor performance, and cardiorespiratory endurance will be assessed before and after the intervention. Findings from this study are expected to contribute to the development of evidence-based conservative treatment protocols focusing not only on curve progression but also on functional capacity and overall fitness in adolescents with scoliosis.