Neuromuscular adaptations to load-matched isometric vs. dynamic resistance training in Kho-Kho athletes: a pilot...

This pilot study compared the effects of load-matched isometric resistance training and dynamic resistance training on neuromuscular and sport-related performance in collegiate Kho-Kho athletes.

Seventeen athletes completed the study and were included in the final analysis: nine in the isometric training group and eight in the dynamic training group. Both groups completed a five-week training program, with intensity regulated using modality-specific rating of perceived exertion scales: the Isometric Exercise Scale for the isometric group and the Borg CR-10 scale for the dynamic group. Pre- and post-intervention assessments included knee extension and flexion torque at multiple angles and velocities, squat linear sprint performance, vertical jump metrics, and reactive strength index.

The isometric group showed significant within-group improvements in 75° knee-extension peak torque and jump height, and both groups improved selected strength and sprint outcomes. Significant Group × Time interactions were observed for 75° right knee-extension peak torque and initial squat-start sprint speed, suggesting greater improvement in the isometric group for these selected outcomes. However, vertical jump improvement did not show a significant Group × Time interaction, and isokinetic torque outcomes showed no clear modality-specific superiority.

These preliminary findings suggest that RPE-regulated isometric training may provide short-term benefits for selected joint-angle-specific strength and initial acceleration outcomes in Kho-Kho athletes. However, definitive superiority over dynamic resistance training cannot be concluded from this exploratory pilot study.