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Evaluation of pain threshold using a simple pressure algometer.

H M Buchanan1, J A Midgley

  • 1Department of Rheumatology, McMaster University Health Sciences Centre, Hamilton, Ontario, Canada.

Clinical Rheumatology
|December 1, 1987
PubMed
Summary
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This study found women have lower pain thresholds than men, with the forehead being most sensitive. Anxiety and fear significantly decrease pain tolerance.

Area of Science:

  • Neuroscience
  • Psychology
  • Human Physiology

Background:

  • Pain perception varies among individuals.
  • Understanding factors influencing pain threshold is crucial for pain management.
  • Previous research suggests potential differences in pain sensitivity.

Purpose of the Study:

  • To investigate pain threshold differences across body areas and sexes.
  • To assess the impact of anxiety and fear on pain perception.
  • To evaluate the reliability of pressure algometry for pain threshold measurement.

Main Methods:

  • Pain threshold was measured using a simple pressure algometer in 190 subjects.
  • Intra-observer error was assessed for measurement reliability.
  • Data were analyzed to compare thresholds between sexes and body areas.

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Main Results:

  • A highly acceptable intra-observer error was found, indicating reliable measurements.
  • Females exhibited significantly lower pain thresholds across all five body areas studied.
  • The forehead was identified as the most sensitive body area.
  • A higher pain threshold was noted in the dominant hand.
  • Increased anxiety and fear of pain were significantly correlated with reduced pain thresholds.

Conclusions:

  • Sex, body location, hand dominance, and psychological factors like anxiety and fear significantly influence pain thresholds.
  • Pressure algometry is a reliable method for assessing pain threshold.
  • These findings have implications for understanding and managing pain in diverse populations.