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Cognitive dissonance increases spine loading in the neck and low back.

Eric B Weston1,2, Afton L Hassett3, Safdar N Khan1,4

  • 1Spine Research Institute, The Ohio State University, Columbus, OH, USA.

Ergonomics
|March 2, 2023
PubMed
Summary

Cognitive dissonance, a psychological state, increased spinal loads in the neck and low back. This suggests cognitive dissonance may be an unrecognized risk factor for neck and low back pain.

Keywords:
Musculoskeletal disorderbiopsychosocialcervicallumbarpain

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Area of Science:

  • Biomechanics
  • Psychology
  • Occupational Health

Background:

  • Cognitive dissonance arises from conflicting thoughts, behaviors, or attitudes.
  • Previous research has not explored the link between cognitive dissonance and spinal loading.

Purpose of the Study:

  • To investigate the potential role of cognitive dissonance in biomechanical loading of the cervical and lumbar spines.
  • To determine if cognitive dissonance influences spinal loads during a precision task.

Main Methods:

  • Seventeen participants performed a precision lowering task in a laboratory setting.
  • A cognitive dissonance state was induced by providing negative performance feedback.
  • Spinal loads were calculated using electromyography-driven models for the cervical and lumbar spines.

Main Results:

  • The induced cognitive dissonance state was associated with significant increases in peak spinal loads in the neck (11.1%) and low back (2.2%).
  • A stronger cognitive dissonance state correlated with a greater increase in spinal loading.
  • The magnitude of cognitive dissonance was directly proportional to the increase in spinal loading.

Conclusions:

  • Cognitive dissonance may represent a novel risk factor for developing low back and neck pain.
  • The findings highlight a potential psychological contributor to physical spinal strain.
  • Further research is warranted to explore the clinical implications of cognitive dissonance on spinal health.