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Sensory Integration for Postural Control in Rheumatoid Arthritis Revealed by Computerized Dynamic Posturography.

Marta Cristina Rodrigues da Silva1, Deyse Borges Machado1, Luis Mochizuki2

  • 1College of Health and Sport Sciences, State University of Santa Catarina, Florianópolis 88080-350, Brazil.

International Journal of Environmental Research and Public Health
|March 29, 2023
PubMed
Summary

People with rheumatoid arthritis (RA) exhibit altered postural control, with greater center of pressure (COP) sway in sensory-dependent conditions compared to healthy individuals. This highlights the impact of sensory information on balance in RA patients.

Keywords:
balance controlpostural controlrheumatoid arthritis

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Area of Science:

  • Biomechanics
  • Neuroscience
  • Rheumatology

Background:

  • Rheumatoid arthritis (RA) is a systemic autoimmune disease impacting mobility.
  • Understanding sensory influences on postural control in RA is crucial for managing mobility impairments.

Purpose of the Study:

  • To evaluate postural control in individuals with RA using the Sensory Organization Test (SOT).
  • To compare how sensory information affects postural responses in RA patients versus healthy controls.

Main Methods:

  • The study involved 28 women with RA and 16 healthy women (Control Group).
  • Postural control was assessed using the Smart Balance Master® to measure center of pressure (COP) during SOT conditions (SOT1, SOT2, SOT5).
  • Statistical analysis included independent t-tests or Mann-Whitney U-tests.

Main Results:

  • Significant differences in postural control were observed between the RA and control groups.
  • Both groups showed increased COP velocity in SOT-5 compared to SOT-1.
  • The RA group exhibited larger COP measures in SOT-2 and SOT-5 compared to the control group, indicating greater sway in visually and somatosensorily challenging conditions.

Conclusions:

  • Individuals with RA demonstrate impaired postural control, particularly when relying on visual and somatosensory information.
  • Sensory organization is significantly affected in RA patients, contributing to balance deficits.
  • These findings underscore the importance of sensory integration in maintaining balance for individuals with rheumatoid arthritis.