Effectiveness Of Post-Isometric Relaxation With Sustained Stretching On Flexor Group Muscles Tightness In Post-Operative Hip And Knee Surgery. Int. J. Environ. Sci. [Internet]. 2025 Aug. 20 [cited 2025 Sep. 16];:653-60. Available from: https://theaspd.com/index.php/ijes/article/view/7336