Belma Degerli Maras

Performance-based functional assessment in ankylosing spondylitis: Clinical utility and validation of the Back Performance Scale (BPS-TR)

Background Self-report questionnaires are commonly used to assess functional status in patients with ankylosing spondylitis (AS). However, these instruments may not fully reflect patients’ actual physical performance. The Back Performance Scale (BPS-TR) may provide a more objecti...