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Related Experiment Videos

Adverse neural tension: a factor in repetitive hamstring strain?

S E Turl1, K P George

  • 1Physiotherapy Department, Charing Cross Hospital, London, England.

The Journal of Orthopaedic and Sports Physical Therapy
|January 24, 1998
PubMed
Summary

Repetitive hamstring strain in rugby players may stem from adverse neural tension, not reduced flexibility. Most injured players showed positive slump tests, indicating neural involvement in their hamstring injuries.

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Area of Science:

  • Sports Medicine
  • Neuromuscular Physiology
  • Biomechanics

Background:

  • Repetitive hamstring strain is a complex injury in athletes, particularly rugby players.
  • The precise etiology and contributing factors remain incompletely understood.
  • Adverse neural tension is a potential, yet under-investigated, factor in hamstring injuries.

Purpose of the Study:

  • To investigate the presence of adverse neural tension in male rugby union players with a history of grade 1 repetitive hamstring strain.
  • To compare findings with an injury-free, matched control group.
  • To explore the relationship between neural tension and hamstring flexibility in this cohort.

Main Methods:

  • Utilized the slump test to assess adverse neural tension.
  • Measured hamstring flexibility using the active knee extension in lying test.

Related Experiment Videos

  • Compared results between a group of 14 injured players and a matched control group.

    • Main Results:

    • 57% of rugby players with hamstring strain exhibited positive slump tests, indicating adverse neural tension.
    • No participants in the control group presented with a positive slump test.
    • No significant differences in hamstring flexibility were found between the injured and control groups, or between players with positive versus negative slump tests.

    Conclusions:

    • Adverse neural tension may be a causative or contributing factor in the development of repetitive hamstring strain in rugby players.
    • Reduced hamstring flexibility does not appear to be a consistent finding in players with this type of injury.
    • These findings suggest a potential role for neural mobilization techniques in the management of recurrent hamstring injuries.