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Back Mechanical Sensitivity Assessment in the Rat for Mechanistic Investigation of Chronic Back Pain
Published on: August 30, 2022
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Differences in Postural Balance, Pain Sensitivity and Depression between Individuals with Acute and Chronic Back
José Antonio Mingorance1,2, Pedro Montoya1, José García Vivas Miranda3
1Research Institute on Health Sciences (IUNICS-IdISBa), University of the Balearic Islands, 07122 Palma de Mallorca, Spain.
Journal of Clinical Medicine
|May 28, 2022
Summary
Chronic low back pain patients exhibit poorer postural balance, but this difference vanishes when accounting for depression. Depression significantly impacts balance in pain patients, highlighting the need for integrated assessment.
Area of Science:
- Neurology
- Rehabilitation Medicine
- Psychiatry
Background:
- Low back pain (LBP) is a prevalent condition affecting millions globally.
- Postural balance, pain, and depression are frequently impaired in LBP patients.
- Understanding the interplay between these factors is crucial for effective treatment.
Purpose of the Study:
- To compare postural balance, pain sensitivity, and depression levels in patients with chronic LBP, acute LBP, and healthy controls.
- To investigate the role of depression as a potential mediator in postural balance deficits observed in LBP.
Main Methods:
- A modified Romberg test assessed postural balance in 3 groups: chronic LBP (n=20), acute LBP (n=20), and healthy controls (n=20).
- Video recording and open-source software (CvMob) analyzed body sway (anteroposterior and mediolateral axes).
- Pain sensitivity (pressure pain thresholds) and depression (PHQ-9 questionnaire) were also assessed.
Main Results:
- Chronic LBP patients demonstrated significantly greater and faster body sway compared to acute LBP patients and healthy controls.
- These group differences in postural balance were no longer significant when depression was statistically controlled for (covariate analysis).
- This suggests a substantial contribution of depressive symptoms to postural instability in LBP.
Conclusions:
- Postural balance deficits are pronounced in chronic LBP, but depression appears to be a key influencing factor.
- Integrating assessments of both postural balance and depression into clinical practice is recommended.
- Tailored interventions addressing both physical and psychological aspects are essential for managing LBP effectively.
