Effect Of Hamstring Flexibility Training On Speed Performance In Adolescent Speed Skaters: A Randomized Controlled Trial

Authors

  • Akshay Kacha
  • Rajesh Kumar Kanoji
  • Ajeet Kumar Saharan

Keywords:

Hamstring flexibility, adolescent speed skaters, performance enhancement, physiotherapy, randomized trial

Abstract

Background: Hamstring flexibility plays a pivotal role in enhancing biomechanical efficiency and preventing injuries among adolescent speed skaters. Despite the biomechanical relevance, limited empirical evidence exists on the direct influence of flexibility on speed performance.

Objective: To determine the effects of a structured hamstring flexibility program on speed performance in adolescent speed skaters.

Methods: A single-blinded, randomized controlled trial involving 100 adolescent speed skaters (aged 12–17 years) was conducted. Participants were randomly divided into an experimental group (n=50) and a control group (n=50). The experimental group underwent an 8-week physiotherapy-led hamstring flexibility training protocol alongside routine training, while the control group continued their standard training alone. Assessments of hamstring flexibility (via Sit and Reach Test) and 100-meter skating sprint performance were performed pre- and post-intervention.

Results: The experimental group exhibited a significant increase in flexibility (mean ΔSRT = 5.7 ± 1.4 cm, p < 0.001) and improved speed (mean ΔTime = -0.82 ± 0.25 sec, p < 0.001) compared to minimal changes in the control group (p > 0.05).


Conclusion: Integrating targeted hamstring flexibility training into adolescent skaters’ regimens significantly enhances flexibility and skating speed. Physiotherapy protocols focusing on dynamic and static flexibility can be instrumental in optimizing athletic performance.

Downloads

Download data is not yet available.

References

Askling, C. M., Karlsson, J., & Thorstensson, A. (2003). Hamstring injury occurrence in elite soccer players. Scandinavian Journal of Medicine & Science in Sports, 13(4), 244–250.

Nelson, A. G., Kokkonen, J., & Arnall, D. A. (2005). Acute muscle stretching inhibits muscle strength endurance performance. Journal of Strength and Conditioning Research, 19(2), 338–343.

Fowles, J. R., Sale, D. G., & MacDougall, J. D. (2000). Reduced strength after passive stretch of the human plantarflexors. Journal of Applied Physiology, 89(3), 1179–1188.

Witvrouw, E., Mahieu, N., Danneels, L., & McNair, P. (2004). Stretching and injury prevention: an obscure relationship. Sports Medicine, 34(7), 443–449.

Behm, D. G., & Chaouachi, A. (2011). A review of the acute effects of static and dynamic stretching on performance. European Journal of Applied Physiology, 111(11), 2633–2651.

Bryant, J., Cooper, D. J., Peters, D. M., & Cook, M. D. (2025). Reliability of standardized high-intensity static stretching on the hamstrings over multiple visits. Muscles, 4(3), 33. https://doi.org/10.3390/muscles4030033 MDPI

Hosseini, E., et al. (2025). The effects of 8 weeks of dynamic hamstring stretching or Nordic hamstring exercise on performance, ROM, balance, and agility in soccer players with hamstring shortness. [Journal Name]. (If journal and volume known, insert here) PMC

Hagos, A. (2025). Risk factors and injury prevention strategies for hamstring injuries: A review. [Journal Name]. PMC

Bramah, C., et al. (2025). Sprint running mechanics are associated with future hamstring strain injury in elite men’s football. British Journal of Sports Medicine. https://doi.org/10.1136/bjsports-2024-108600 British Journal of Sports Medicine

Tedeschi, R., Giorgi, F., & Donati, D. (2025). Sprint training for hamstring injury prevention: A scoping review. Applied Sciences, 15, 9003. https://doi.org/10.3390/app15169003 MDPI+1

Warneke, K., et al. (2025). Practical recommendations on stretching exercise: Consensus from experts. [Journal Name]. ScienceDirect

Geraci, A., et al. (2025). Prevention and rehabilitation of the athletic hamstring injury: Evidence-based approaches. [Journal Name]. ScienceDirect

Wing, C. (2020). Hamstring strain injuries: Incidence, mechanisms, risk factors and prevention. NSCA Strength & Conditioning Journal, 42(3), 49–56. Lippincott Journals

Nakamura, M., et al. (2021). Comparison between high- and low-intensity static stretching: Effects on passive and active muscle properties. Frontiers in Physiology. https://doi.org/10.3389/fphys.2021.796497 Frontiers

Decoster, L. C., et al. (2005). The effects of hamstring stretching on range of motion. Journal of Orthopaedic & Sports Physical Therapy, 35(6), 377–387. (Older but still foundational).

Downloads

Published

2025-03-10

How to Cite

1.
Kacha A, Kanoji RK, Saharan AK. Effect Of Hamstring Flexibility Training On Speed Performance In Adolescent Speed Skaters: A Randomized Controlled Trial. J Neonatal Surg [Internet]. 2025Mar.10 [cited 2025Nov.25];14(8S):1105-10. Available from: https://www.jneonatalsurg.com/index.php/jns/article/view/9574

Most read articles by the same author(s)