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Immediate reduction in temporal sensory summation after thoracic spinal manipulation
Mark D Bishop1, Jason M Beneciuk, Steven Z George
1Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA. bish@ufl.edu
Summary
Thoracic spinal manipulative techniques (SMT) reduced temporal sensory summation (TSS) in healthy individuals. This suggests SMT may modulate the nociceptive afferent system beyond the direct application area, though further research is needed.
Area of Science:
- Neuroscience
- Pain Research
- Musculoskeletal Medicine
Background:
- Spinal manipulative techniques (SMT) are used for musculoskeletal pain.
- Previous research suggests SMT effectiveness in some patients.
- The regional pain modulation effects of thoracic SMT require further investigation.
Purpose of the Study:
- To investigate whether thoracic SMT can induce regional pain modulation.
- To assess experimental pain sensitivity in cervical and lumbar areas after SMT.
Main Methods:
- A randomized experimental design was employed in a university pain laboratory.
- Ninety healthy volunteers received SMT, exercise, or rest intervention to the upper thoracic spine.
- Experimental pain sensitivity and pain-related affect were measured before and after interventions.
Main Results:
- No significant effects of intervention on pressure or A-delta-mediated thermal pain responses were observed.
- Participants receiving SMT demonstrated greater reductions in temporal sensory summation (TSS).
Conclusions:
- Thoracic SMT can reduce TSS in healthy subjects.
- Findings suggest SMT may influence the nociceptive afferent system in areas distant from application.
- Further studies are needed to determine the duration of these effects and their clinical relevance in patient populations.
