Prananta, M. S.; Sari, D. M.; Paramita, I. A.; Trianasari, N.; Wijaya, L. C. G. .; Santoso, P. H. C. The Impact of Periodized Sit-to-Stand Exercises on Enhancing Gross Motor Skills and Balance in Children With Down Syndrome. SPMRJ 2025, 7, 164-181.