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The objective measurement of pain using a motor-performance task
1Psychology Laboratory, Sugiyama Jogakuen Junior College, Nagoya, Japan.
Ergonomics
|September 1, 1991
Summary
Researchers improved an objective method for measuring wrist pain from cervicobrachial disorders using a plate-pushing task. The enhanced method applies wrist load and pressure adjustments, enabling precise pain measurement and objective assessment of pain conditions.
Area of Science:
- Biomedical Engineering
- Neuroscience
- Orthopedics
Background:
- Cervicobrachial disorders can cause endogenous wrist pain.
- Previous objective measurement methods for this pain were limited.
- The plate-pushing task was previously introduced for pain assessment.
Purpose of the Study:
- To enhance an objective method for measuring endogenous wrist pain.
- To improve the induction and quantification of pain in cervicobrachial disorder patients.
- To assess the reliability of the enhanced method under varying conditions.
Main Methods:
- Modified the plate-pushing task by adding a load to the wrist.
- Introduced a new procedure requiring subjects to adjust pressure against a balance.
- Examined the effects of hand dominance and trial order on pain measurement.
Main Results:
- The enhanced method successfully induced wrist pain more easily.
- The new procedure allowed for precise identification of pressure levels causing pain.
- Hand dominance and trial order did not significantly affect the results.
Conclusions:
- The improved plate-pushing task provides a highly useful, objective method for measuring wrist pain.
- The method effectively replicates conditions similar to ordinary pain-inducing motion.
- This technique offers a reliable tool for clinical assessment and research in cervicobrachial disorders.