EFEKTIVITAS MICRO-DOSE ECCENTRIC TRAINING TERHADAP FLEKSIBILITAS HAMSTRING PADA ATLET SEKOLAH BERDASARKAN ACTIVE KNEE EXTENSION TEST

Dedi Pirdaus; Ghina Shofi

doi:10.59003/nhj.v6i1.2272

Authors

Dedi Pirdaus Universitas Muhammadiyah Ahmad Dahlan Palembang
Ghina Shofi Universitas Muhammadiyah Ahmad Dahlan Palembang

DOI:

https://doi.org/10.59003/nhj.v6i1.2272

Keywords:

Active Knee Extension Test, eccentric exercise, hamstring flexibility, Micro-Dose Eccentric Training, school athletes

Abstract

Background: Hamstring injury is one of the most common non-contact injuries among athletes and is closely associated with reduced hamstring flexibility. This study aimed to investigate the effectiveness of Micro-Dose Eccentric Training on hamstring flexibility among school athletes assessed using the Active Knee Extension Test. Methods: A quasi-experimental pretest–posttest control group design was conducted involving 60 school athletes, comprising 30 participants in the intervention group and 30 in the control group. The intervention group completed a six-week Micro-Dose Eccentric Training program, whereas the control group continued their regular training. Hamstring flexibility was assessed using the Active Knee Extension Test before and after the intervention. Results: The intervention group demonstrated significantly greater improvements in hamstring flexibility than the control group (p < 0.001), with a mean improvement of 8.17° (95% CI: 7.19–9.15°) and a very large effect size (Cohen's d = 3.22). Conclusion: Micro-Dose Eccentric Training is effective in improving hamstring flexibility among school athletes.

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