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Related Experiment Videos

Tender points in fibromyalgia.

Eldon Tunks1, Joan Crook, Geoffrey Norman

  • 1Faculty of Health Sciences, McMaster University, and Chedoke-McMaster Pain Program, Chedoke-McMaster Hospitals, Hamilton, Ont. L8N 3Z5 Canada.

Pain
|July 1, 1988
PubMed
Summary
This summary is machine-generated.

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This study confirms that fibromyalgia patients have lower tenderness thresholds than healthy individuals. The pressure algometer demonstrated high reliability for measuring tenderness in fibromyalgia research.

Area of Science:

  • Pain research
  • Neurology
  • Rheumatology

Background:

  • Fibromyalgia is a chronic condition characterized by widespread pain.
  • Objective measurement of pain sensitivity is crucial for diagnosis and management.

Purpose of the Study:

  • To assess the inter-rater and test-retest reliability of a pressure algometer.
  • To compare tenderness thresholds between fibromyalgia patients and healthy controls.

Main Methods:

  • Two independent examiners assessed tenderness thresholds using a pressure algometer on typical tender points in fibromyalgia patients and controls.
  • Repeated measures ANOVA was used to analyze tenderness thresholds.
  • Further analysis included tender and non-tender points to investigate generalized sensitivity.

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Main Results:

  • Fibromyalgia patients exhibited significantly lower tenderness thresholds compared to normal subjects.
  • The pressure algometer demonstrated high inter-rater (0.85) and test-retest (0.85) reliability.
  • Lowered tenderness thresholds were observed in fibromyalgia patients even at non-tender points, suggesting generalized hypersensitivity.

Conclusions:

  • A pressure algometer is a reliable tool for measuring tenderness in fibromyalgia.
  • Fibromyalgia is associated with a generalized lowering of pain thresholds, not just at specific tender points.