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Disorders of the Skeletal Muscle01:28

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Patellofemoral Pain After Knee Trauma: Exploring Clinical, Biomechanical, and Muscle Strength Variables.

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Related Experiment Video

Updated: May 3, 2026

The Lower Body Positive Pressure Treadmill for Knee Osteoarthritis Rehabilitation
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Trunk Neuromuscular Function in People With Knee Disorders: A Systematic Review With Meta-Analysis and Gap Map.

Júlia C P da Silva1, Théo M B da Silva2, Lionel Chia3,4

  • 1School of Science and Technology, Department of Physical Therapy, Sao Paulo State University, Presidente Prudente, SP, Brazil.

Journal of Sport Rehabilitation
|August 23, 2025
PubMed
Summary
This summary is machine-generated.

People with patellofemoral pain show reduced trunk strength and endurance, potentially explaining altered movement patterns. More research is needed for effective rehabilitation strategies for knee injuries.

Keywords:
knee injuriesknee surgeriesproximal stabilizationtrunk function

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Area of Science:

  • Biomechanics
  • Neuromuscular Function
  • Knee Disorders

Background:

  • Altered trunk kinematics are observed in individuals with knee disorders, possibly due to trunk muscle deficits.
  • Limited synthesized evidence exists on trunk neuromuscular function in knee disorder populations compared to healthy individuals.

Purpose of the Study:

  • To systematically compare trunk neuromuscular function between individuals with and without knee disorders.

Main Methods:

  • A comprehensive literature search was conducted across 5 databases up to September 2024.
  • Included observational studies comparing trunk muscle strength, endurance, stability, and neuromuscular measures.
  • Meta-analyses were performed where possible, with certainty of evidence assessed using GRADE and an evidence gap map created.

Main Results:

  • Twenty-three studies covered patellofemoral pain, ACL deficiency/reconstruction, and knee osteoarthritis.
  • Individuals with patellofemoral pain exhibited significantly lower lateral trunk flexion strength and endurance, and reduced anterior/extension endurance.
  • No significant differences were found in erector spinae onset timing or external oblique activation during specific tasks.

Conclusions:

  • Reduced trunk strength and endurance in patellofemoral pain align with observed kinematic alterations.
  • Further research on trunk neuromuscular function is crucial for optimizing rehabilitation in knee injury and osteoarthritis patients.