Effect of Pelvic Floor Muscle Training Combined With Scoliosis-Specific Three-Dimensional Exercises in Adolescents With Idiopathic Scoliosis

The goal of this clinical trial is to evaluate the effects of scoliosis-specific three-dimensional exercises combined with pelvic floor muscle training on scoliosis severity and spinopelvic parameters in adolescents with idiopathic scoliosis. The main questions it aims to answer are: * Does the addition of pelvic floor muscle training to scoliosis-specific three-dimensional exercises improve scoliosis severity compared with scoliosis-specific three-dimensional exercises alone? * Does the addition of pelvic floor muscle training improve spinopelvic parameters compared with scoliosis-specific three-dimensional exercises alone? Researchers will compare a scoliosis-specific three-dimensional exercise plus pelvic floor muscle training group with a scoliosis-specific three-dimensional exercise group to determine whether the combined intervention provides additional clinical benefits. Participants will: * undergo baseline clinical and radiographic assessments; * be randomly assigned to one of the two intervention groups; * receive supervised treatment for 3 months according to the assigned intervention; * undergo follow-up clinical and radiographic assessments at the end of the intervention period.

Inclusion Criteria: * Aged 10-18 years. * Diagnosed with adolescent idiopathic scoliosis and eligible for brace treatment. * Cobb angle between 20° and 45°. * Risser sign between 0 and 3. * Able to comply with and regularly attend the assigned treatment program. * No neurological or psychiatric disorder. * Willing to participate in the study, with written assent from the participant and informed consent from a parent or legal guardian. Exclusion Criteria: * Any contraindication to exercise. * Previous surgery involving the thoracic, abdominal, or pelvic region. * Previous scoliosis surgery or being a candidate for scoliosis surgery. * Any cognitive or mental condition that could prevent understanding or following the treatment program. * Non-idiopathic scoliosis, including neurological, congenital, or other secondary causes. * Receipt of any scoliosis treatment or pelvic floor muscle training within the previous year. * Diagnosis of urinary incontinence. * Regular participation in sports.