The Difference in the Effects of Open Kinetic Chain Exercise and Isometric Exercise on the Quadriceps Muscles in Reducing Pain in Patients with Knee Osteoarthritists with Knee Osteoarthritis. j.keterapian.fis. [Internet]. 2025 Dec. 17 [cited 2025 Dec. 28];8(2):90-6. Available from: https://jurnalketerapianfisik.com/index.php/jpt/article/view/490