Impact of a Prevent Injury and Enhance Performance (PEP) Training Program on Dynamic Balance and Center of Pressure in Soccer Players With and Without Anterior Cruciate Ligament Reconstruction
نویسندگان
1 Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.
2 Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.
3 Department of Sport Biomechanics, Hamedan Branch, Islamic Azad University, Hamedan, Iran.
4 Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran.
doi
10.30476/jrsr.2025.106089.1559چکیده
Background: Anterior cruciate ligament (ACL) injuries are common in soccer and can substantially impair postural stability and athletic performance. The Prevent Injury and Enhance Performance (PEP) program has been developed to reduce the risk of ACL injury. This study aimed to examine the effects of an 8-week PEP training program on time to stability (TTS) and center of pressure (COP) parameters in soccer players with and without ACL reconstruction (ACLR). Methods: This semi-experimental study employed a pre-test–post-test design. Twenty-one male soccer players (mean age: 25.43 years) at an average of 15.12 months post-ACLR and 21 healthy male soccer players (mean age: 22.79 years) participated. Participants performed a jump-landing task, and COP variables and TTS were measured before and after the 8-week PEP training program. Within-group comparisons were conducted using paired t-tests, while between-group differences were analyzed using one-way ANOVA. Statistical significance was set at p ≤ 0.05. Results: Within-group analyses demonstrated significant reductions in mediolateral (M-L) COP fluctuations (p = 0.018) and M-L TTS (p = 0.001) in the healthy group. In the ACLR group, significant improvements were observed in M-L COP fluctuations (p = 0.001), M-L COP variability (p = 0.034), total TTS (p = 0.015), and M-L TTS (p = 0.001) following the intervention. Pre-test between-group comparisons revealed significantly greater M-L COP fluctuations (p = 0.001), M-L COP variability (p = 0.044), and total TTS (p = 0.021) in the ACLR group. However, no significant between-group differences were observed post-intervention (p > 0.05), suggesting that the PEP program effectively reduced postural control deficits in the ACLR group to levels comparable with healthy players. Conclusion: The 8-week PEP training program produced significant improvements in postural control in both healthy and ACLR soccer players. These findings support the potential effectiveness of structured neuromuscular training programs in reducing postural instability and possibly lowering the risk of ACL injury or re-injury.
