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Related Experiment Videos

Limited joint mobility in power lifters.

D E Chang1, L P Buschbacher, R F Edlich

  • 1Department of Plastic Surgery and Biomedical Engineering, University of Virginia, School of Medicine, Charlottesville 22908.

The American Journal of Sports Medicine
|May 1, 1988
PubMed
Summary

Power lifters demonstrate greater flexibility than non-power lifters, particularly in the sit and reach test. This finding highlights the importance of specific flexibility assessments in athletic populations.

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Area of Science:

  • Sports Science
  • Kinesiology
  • Human Movement

Background:

  • Flexibility is a key component of athletic performance and injury prevention.
  • Assessing flexibility in athletes requires validated and reliable measurement tools.
  • Powerlifting, a strength-focused sport, may influence an athlete's range of motion.

Purpose of the Study:

  • To compare the flexibility of powerlifters to age-matched non-powerlifters.
  • To identify which flexibility tests are most sensitive to differences between these groups.

Main Methods:

  • Goniometric measurements were used to assess joint range of motion.
  • The behind-the-back reach test evaluated shoulder and thoracic spine flexibility.
  • The sit and reach test measured hamstring and lower back flexibility.

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Main Results:

  • The sit and reach test indicated significantly greater flexibility in powerlifters compared to controls.
  • Goniometric measurements and the behind-the-back reach test did not reveal significant differences between groups.
  • This suggests a specific adaptation in the posterior chain for powerlifters.

Conclusions:

  • The sit and reach test is a valuable tool for assessing flexibility differences in powerlifters.
  • Powerlifters exhibit enhanced posterior chain flexibility, likely due to training adaptations.
  • Further research should explore the functional implications of this specific flexibility profile.