Conditioned Pain Modulation Induced by Mechanical Stimulation. A Mechanism of Manual Therapy Analgesia: Study 2
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 24
- Locations
- 2
- Primary Endpoint
- Change from Baseline in Tibialis Anterior Pressure Pain Threshold (PPT) to immediate post-conditioning stimulus
Study Overview
Brief Summary
The objective is to estimate the effects on pain thresholds of a painful mechanical stimulus on the upper trapezius at moderate intensity compared to mild intensity or non-painful.
Detailed Description
The mechanical stimulus produced in manual therapy (MT) techniques elicits neurophysiological responses within the peripheral and central nervous system responsible for pain inhibition. Almost all types of MT elicit a neurophysiological response that is associated with the descending pain modulation circuit. But it has not been demonstrated whether this inhibition occurs through a conditioned pain modulation mechanism induced by painful mechanical stimulation that is carried out with manual therapy techniques.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Treatment
- Masking
- Single (Outcomes Assessor)
Eligibility Criteria
- Ages
- 18 Years to 65 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •healthy male or female between 18 and 65 years
- •Free of pain and with no history of chronic pain
Exclusion Criteria
- •Pregnant or having given birth within the last year
Outcomes
Primary Outcomes
Change from Baseline in Tibialis Anterior Pressure Pain Threshold (PPT) to immediate post-conditioning stimulus
Time Frame: At baseline and immediately after the conditioning stimulus
PPTs will be assessed on the dominant side over the tibialis anterior muscle using a digital algometer (Wagner instruments, Greenwich, CT, USA). Participants will be instructed to say "stop" when the pressure sensation becomes painful.The average of 3 assessments on the tibialis anterior of the dominant side will be performed for analysis. The algometer pressure for assessment will be gradually increased at a rate of 1kg/second. Data will be collected in kg/cm2.
Secondary Outcomes
No secondary outcomes reported
Investigators
Josue Fernandez Carnero
Professor
Universidad Rey Juan Carlos