Tarbiat Modares University International Journal of Musculoskeletal Pain Prevention 2476-5279 6 4 2021 10 01 A Prophylactic Effect of PNF Stretching on Mechanical Parameters of Agility, Squat and Continuous Jumps following Exercise-induced Muscle Damage 613 621 20185 10.52547/ijmpp.6.4.613 EN Ali Jalalvand Department of Sport Biomechanics, Hamedan Branch, Islamic Azad Univer- sity, Hamedan, Iran. Gholam Reza Khaksari Department of Sport Management, Hamedan Branch, Islamic Azad Univer- sity, Hamedan, Iran. Journal Article <strong>Aim: </strong>The purpose of this study was to examine the effects of Proprioceptive Neuromuscular Facilitation (PNF)stretching combined with plyometric training on agility and Squat/Continuous jumps in non-athlete male students. <br> <strong>Method and Materials: </strong>Thirty non-athlete male students were volunteered to participate in this study. Participants were assigned into control (n=21) and intervention (n=21) groups. Dependent variables were recorded at baseline and 48 hours after post-exercise. A Vicon (200 Hz) motion analysis system with six T-Series cameras and two Kistler force plates (1000 HZ) were used to record kinematic and kinetic data. A two-way repeated measure ANOVA (group x EIMD) was used to compare the data between the two groups. <br> <strong>Findings:</strong> The agility in the intervention group was higher than in the plyometric group at 48 hours (P=0.015). Within-group comparison of agility showed a difference in the plyometric & PNF group from pre- to post-training (P=0.003). There were no significant differences in Squat jump test parameters from pre- to post-test between groups (P˃0.05). Also, within-group comparison of continuous jump of variables (maximum vertical displacement and power average) showed no difference in the plyometric & PNF group at 48 hours (P˃0.05). <br> <strong>Conclusion:</strong> A prophylactic effect of PNF stretching on agility and components of continuous jumps following exercise-induced muscle damage was useful. Therefore, PNF can be useful with a preventative method in reducing the symptoms of exercise-induced muscle damage in some functional parameters of the exercise. https://ijmpp.modares.ac.ir/article_20185_75f83581dbe3440aea46539676d70efe.pdf