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Updated: Jun 28, 2026

Determining heat and mechanical pain threshold in inflamed skin of human subjects
Published on: January 14, 2009
Effect of thermode application pressure on thermal threshold detection
Goran Pavlaković1,2,3,4, Ina Klinke1,2,3,4, Helena Pavlaković2
1Center for Anesthesiology, Emergency and Intensive Care Medicine, University Clinic Göttingen, Robert-Koch-Strasse 40, D-37099 Göttingen, Germany.
This study investigated thermode pressure effects on quantitative sensory testing (QST). Results show thermode pressure does not significantly impact thermal sensory threshold measurements or their reproducibility.
Area of Science:
- Neuroscience
- Biomedical Engineering
- Sensory Physiology
Background:
- Quantitative sensory testing (QST) faces challenges with result variability, limiting its clinical application.
- Reliability and reproducibility of QST are crucial for widespread adoption.
- Thermode pressure on skin may influence thermal sensory threshold measurements.
Purpose of the Study:
- To develop a novel thermode with an integrated pressure sensor.
- To investigate the impact of thermode pressure on thermal sensory thresholds.
- To assess the effect of thermode pressure on measurement reproducibility.
Main Methods:
- Developed a new thermode with a built-in pressure sensor.
- Compared thermal sensory thresholds using the new thermode versus a commercial device (Medoc TSA-II).
- Analyzed heat transfer capacity and thermode skin contact material effects.
Main Results:
- Thermal detection and heat pain thresholds differed between thermodes, potentially due to material properties.
- Cold pain detection thresholds showed no significant difference.
- Thermode pressure did not significantly affect thermal thresholds or intrasubject variability.
Conclusions:
- Thermode pressure is not a significant factor influencing thermal sensory threshold measurements.
- The material of the thermode's skin contact surface may impact threshold values.
- Findings suggest improved reliability in QST by controlling for thermode material, not just pressure.
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