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A psychophysical study comparing massage to conditioned pain modulation: A single blind randomized controlled trial in healthy participants.

Journal of bodywork and movement therapies
July 1, 2021
Abigail T Wilson et al. (7 authors)
Journal ArticleRandomized Controlled TrialHuman StudyClinical
Study Details

Study Goal

The researchers aimed to determine whether pain-inducing massage produces similar pain sensitivity reduction as a cold pressor task and if baseline conditioned pain modulation efficiency predicts hypoalgesia from pain-inducing massage.

Results Summary

Pain-inducing massage produced comparable pain sensitivity changes to a cold pressor task, with baseline CPM efficiency influencing outcomes. Both interventions shared similar underlying mechanisms for pain modulation.

Population

60 healthy participants

Effective Dosage

Not specified

Duration

Immediate post-intervention testing (duration not specified)

Interactions

None mentioned

Extracted Claims (7)
InterventionDirectionEndpointPopulationDosageImpactClaim #
pain inducing massage
increase
pain inhibition
-
-
results in greater pain inhibition than
#1
pain inducing massage
decrease
pain sensitivity
-
similar magnitude
produces similar magnitude of reduction in pain sensitivity as
#2
pain inducing massage
decrease
experimental pain sensitivity
healthy participants
comparable
resulted in comparable experimental pain sensitivity changes as
#3
pain intensity during the intervention
neutral
changes in pain sensitivity at a remote site
-
r = 0.20
demonstrated a weak correlation with
#4
pain inducing massage
increase
pressure pain threshold
individuals with an efficient CPM at baseline
greater
displayed greater increases in
#5
pain inducing massage
decrease
self-reported pain
-
less
resulted in less self-reported pain than
#6
pain inducing massage
no change
CPM response
-
similar magnitude
resulted in similar magnitude of the
#7
Abstract

INTRODUCTION: Pain-inducing massage results in greater pain inhibition than pain free massage, suggesting a mechanism dependent on conditioned pain modulation (CPM). The purpose of this study was to test the hypothesis that pain inducing massage produces similar magnitude of reduction in pain sensitivity as a cold pressor task and that baseline conditioned pain modulation efficiency predicts pain inducing massage related hypoalgesia. METHODS: Sixty healthy participants were randomly assigned to receive either pain inducing massage to the neck, cold pressor task to the hand, or pain free massage to the neck. Participants also underwent pre and immediate post-intervention quantitative sensory testing. A repeated measures ANCOVA determined between group differences in pain sensitivity changes. RESULTS: Pain inducing massage used as a conditioning stimulus resulted in comparable experimental pain sensitivity changes as a cold pressor task (p > 0.05). Pain intensity during the intervention demonstrated a weak correlation (r = 0.20, p = 0.12) with changes in pain sensitivity at a remote site. Individuals with an efficient CPM at baseline who received the pain inducing massage displayed greater increases in pressure pain threshold compared to individuals with a less efficient CPM indicating the potential benefit of treatment stratification by mechanism. CONCLUSION: Although pain inducing massage resulted in less self-reported pain than a cold pressor task, both resulted in similar magnitude of the CPM response, suggesting shared underlying mechanisms. Understanding mechanisms of interventions can move us closer to mechanistic based treatments for pain which is consistent with a personalized medicine approach to care.

Medical Subject Headings (MeSH)
Healthy VolunteersHumansMassagePainPain MeasurementPain ThresholdSingle-Blind Method
Study Links
Quality Scores
SafetyNot Assessed
Efficacy75/10
Quality85/10
Citation Metrics
Total Citations10
Citations/Year2.5
Relative Citation Ratio1.55
NIH Percentile66.2%
Research Impact Scores
APT Score0.75
Weight Score2.56
Normalized Score0.67
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