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Related Experiment Videos

Decrease in quadriceps inhibition after sacroiliac joint manipulation in patients with anterior knee pain.

E Suter1, G McMorland, W Herzog

  • 1Faculty of Kinesiology, University of Calgary, Alberta, Canada.

Journal of Manipulative and Physiological Therapeutics
|April 30, 1999
PubMed
Summary

Sacroiliac joint manipulation may reduce muscle inhibition and improve knee extensor strength in individuals with anterior knee pain. This intervention shows promise for enhancing muscle function and recovery after knee injuries.

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Physical Therapy

Background:

  • Conservative rehabilitation often fails to restore full muscle strength and function post-joint injury.
  • High muscle inhibition in knee joint pathologies contributes to poor recovery outcomes.
  • Anterior knee pain is frequently linked to sacroiliac joint dysfunction, potentially causing muscle inhibition.

Purpose of the Study:

  • To investigate if sacroiliac joint manipulation can alleviate muscle inhibition and enhance knee extensor muscle strength in patients experiencing anterior knee pain.

Main Methods:

  • The study involved 18 patients with anterior knee pain undergoing a high-velocity, low-amplitude sacroiliac joint thrust manipulation.
  • Measurements of knee extensor torque, muscle inhibition (using interpolated twitch technique), and muscle activation (using electromyography) were taken before and after the manipulation.

Related Experiment Videos

  • Assessments were conducted during isometric contractions using a Cybex dynamometer and muscle stimulation.

    • Main Results:

    • Patients exhibited significant muscle inhibition in both affected and unaffected legs prior to manipulation.
    • Following sacroiliac joint manipulation, a reduction in muscle inhibition was observed.
    • Increases in knee extensor torques and muscle activation were noted, particularly in the involved leg.

    Conclusions:

    • Spinal manipulation presents a potential alternative treatment for anterior knee pain associated with muscle inhibition.
    • The study's descriptive nature necessitates further verification through randomized, controlled, double-blinded trials to confirm findings and guide recommendations.