SUMARNI , Yasinta Lidia; PUTRI, Rona Sari Mahaji; DEVI, Hilda Mazarina. The Effect of Static Flexibility Training on Knee Joints Stiffness in Older Adults . SURYA: Jurnal Media Komunikasi Ilmu Kesehatan, [S. l.], v. 17, n. 03, p. 124–132, 2026. DOI: 10.38040/js.v17i03.1245. Disponível em: https://jurnal.umla.ac.id/index.php/Js/article/view/1245. Acesso em: 8 jan. 2026.