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Volume 12 , Issue 3
Summer 1998

Pages 203-209

Short-Term Reproducibility of Pressure Pain Thresholds in Masticatory Muscles Measured with a New Algometer

Isselee/De Laat/Bogaerts/Lysens

PMID: 9780941

The purpose of this project was to test the within-day and between-days reproducibility of a new and inexpensive algometer. Twelve symptom-free men and nine women participated. Pressure pain thresholds (PPTs) of the bilateral masseter and temporalis muscles were assessed during four sessions (mornings and afternoons of days 1 and 3). During each session, each palpation point of the masti catory muscles was measured four times. There was an interval of only a few seconds between measurements 1 and 2, and between measurements 3 and 4, respectively, while a t least 5 minutes of rest were allowed between measurements 2 and 3. The PPT values between the morning and afternoon sessions and between days 1 and 3 were not significantly different. When the within-session reproducibility for all muscles was considered, only the PPT values between measurements 2 and 4 were not significantly different. Analysis of variance showed that the interindividual variablity of PPT was 1.4 to 6.8 times higher than the variability observed within or between sessions and days. No gender difference was found.

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