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Related Experiment Videos

Modifications to the Standard Sit-and-Reach Flexibility Protocol.

L E Holt1, T W Pelham, D G Burke

  • 1School of Health and Human Performance, Dalhousie University.

Journal of Athletic Training
|March 25, 2006
PubMed
Summary

Modified sit-and-reach tests offer a more comprehensive flexibility assessment. This protocol helps evaluate the impact of erector spinae, hip rotators, hamstrings, and gastrocnemii muscles on flexibility scores.

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Area of Science:

  • Kinesiology
  • Biomechanical analysis
  • Sports medicine

Background:

  • Strength and aerobic training can reduce erector spinae and hamstring flexibility.
  • Reduced flexibility in these muscles increases injury risk.
  • Standard sit-and-reach tests provide only a single flexibility measurement.

Purpose of the Study:

  • To introduce modifications to the standard sit-and-reach protocol.
  • To enable a more detailed assessment of lower back and hamstring flexibility.

Main Methods:

  • Utilized a multitest flexometer for 6 distinct flexibility measurements.
  • Included standard active and passive sit-and-reach tests.
  • Developed modified active and passive tests with slackened external rotators, and further modified tests with slackened hamstrings, gastrocnemii, and external rotators.

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Main Results:

  • The modified protocol allows for the assessment of flexibility influenced by specific muscle groups.
  • Differentiates the contribution of erector spinae, hip rotators, hamstrings, and gastrocnemii.

Conclusions:

  • This enhanced sit-and-reach protocol provides indirect assessment of key muscle group influence on flexibility.
  • Offers a more nuanced understanding of factors affecting sit-and-reach performance.