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The Differing Effects of Nociception and Pain Memory on Pain Thresholds in Participants with and without a History of Injury: A Pretest-Posttest Quasi Experimental Study

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Journal of Behavioral and Brain Science 2022年第8期12卷 359-379页

作者： Derrick G. Sueki Kim Dunleavy Emilio J. Puentedura Lindsey Heard Peter Van der Heide Ming-Shun Cheng Department of Physical Therapy Azusa Pacific University Azusa USA Department of Physical Therapy University of Florida Gainesville USA Department of Physical Therapy Baylor University Waco USA Scripps Memorial Hospital Encinitas USA amigo baby Oxnard USA Department of Physical Therapy Nova Southeastern University Fort Lauderdale USA

Purpose: Memory has been identified as an important protective feature to prevent future injury, but its role has yet to be ascertained. The current study aimed to determine whether there was a difference in pressure pain threshold (PPT) responses between participants with a prior history of injury of lower extremity injury (PSI) and those without (NPSI) when exposed to 1) experimental mechanical pain, 2) short-term memory recall of a painful stimulus, or 3) long-term memory of the pain associated with a prior injury. Subjects and Methods: The study used a pretest-posttest quasi-experimental design. A convenience sample of 59 pain-free participants was recruited from an urban university. Twenty-nine PSI and 30 NPSI were stratified into two groups based on their injury history with PPT values measured at baseline and immediately following each of the three experimental conditions. A repeated measure ANCOVA analysis was conducted for each condition to determine whether there was a difference in PPT responses between the two groups. Results: There was a statistically significant difference in PPT values between the two groups when exposed to experimental pain, F(1,57) = 6.010, p = 0.017, partial η2 = 0.095 and with long-term pain memory, F(1,57) = 4.886, p = 0.031, partial η2 = 0.079. There was no statistically significant difference between groups with short-term pain memory, F(1,57) = 3.925, p = 0.052, partial η2 = 0.064. Conclusions: These findings suggest that pain processing may be altered by pain memory, highlighting the role of experience and memory in the rehabilitation process.

关键词： Pain Memory Nociception Pressure Pain Threshold Pain Perception Pain Learning

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