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1- Department of Physical Education, Faculty of Literature and Humanities, Yasouj University, Yasouj, Iran
2- Department of Physical Education, Faculty of Sport Sciences, Islamic Azad University of Isfahan (Khorasgan branch), Isfahan, Iran
2- Department of Physical Education, Faculty of Sport Sciences, Islamic Azad University of Isfahan (Khorasgan branch), Isfahan, Iran
Abstract: (23 Views)
Purpose: The anterior cruciate ligament (ACL) of the knee is not only a mechanical stabilizer, but it also provides dynamic sensory feedback that acts in a neuromuscular control function. The purpose of this study was to investigate the effect of perturbation training over 8 weeks on return-to-sport (RTS) criteria in female athletes with ACL injuries classified as "copers."
Methods: In the semi-experimental study, thirty female athletes experiencing unilateral ACL rupture (Coper) were allocated to perturbation training (n=15) and control group (n=15). The intervention group received 8 weeks of perturbation training (3×/week, 60 min), while the control group continued daily activity and did not include any additional training. Outcomes measures included maximum isometric strength of hamstrings and quadriceps (Hand-Held dynamometer), three hop performance tests (Side Hop, Figure-Eight Hop, Triple Hop) and the ACL-Return to Sport after Injury (ACL-RSI) questionnaire. Statistical analyses involved paired t-tests and ANCOVA, and effect sizes (Cohen’s d) will be provided
Results: The perturbation group displayed significant increases in quadriceps strength (mean change: +4.5 Nm, p=0.003, d=0.78), hamstring strength (+10.0 Nm, p=0.001, d=1.02), and H/Q ratio (+23%). There were significant improvements in hop performance: side hop (−5.89 sec, p=0.002, d=1.65), figure-8 hop (−6.86 sec, p=0.005), and triple hop (+117.92 cm, p=0.001). The Kyoto ACL-RSI score displayed significant increases by 27% for the perturbation group (p=0.001, d=0.93).
Conclusions: the strength factors enhanced of the hamstrings and quadriceps muscles and the ratio of these two muscles and the functional test of these athletes. thus, Perturbation training improves RTS criteria in female ACL copers, improving neuromuscular performance and reducing the fear of reinjury.
Methods: In the semi-experimental study, thirty female athletes experiencing unilateral ACL rupture (Coper) were allocated to perturbation training (n=15) and control group (n=15). The intervention group received 8 weeks of perturbation training (3×/week, 60 min), while the control group continued daily activity and did not include any additional training. Outcomes measures included maximum isometric strength of hamstrings and quadriceps (Hand-Held dynamometer), three hop performance tests (Side Hop, Figure-Eight Hop, Triple Hop) and the ACL-Return to Sport after Injury (ACL-RSI) questionnaire. Statistical analyses involved paired t-tests and ANCOVA, and effect sizes (Cohen’s d) will be provided
Results: The perturbation group displayed significant increases in quadriceps strength (mean change: +4.5 Nm, p=0.003, d=0.78), hamstring strength (+10.0 Nm, p=0.001, d=1.02), and H/Q ratio (+23%). There were significant improvements in hop performance: side hop (−5.89 sec, p=0.002, d=1.65), figure-8 hop (−6.86 sec, p=0.005), and triple hop (+117.92 cm, p=0.001). The Kyoto ACL-RSI score displayed significant increases by 27% for the perturbation group (p=0.001, d=0.93).
Conclusions: the strength factors enhanced of the hamstrings and quadriceps muscles and the ratio of these two muscles and the functional test of these athletes. thus, Perturbation training improves RTS criteria in female ACL copers, improving neuromuscular performance and reducing the fear of reinjury.
Keywords: Perturbation Exercises, neuromuscular control, Functional Test, Anterior Cruciate ligament, Return to Sport
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