NCT03495076

Perceptual Distortions in Acute Neck Pain

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 30 (actual)
• Sponsor: The Jerzy Kukuczka Academy of Physical Education in Katowice · Academic / Other
• Sex: All
• Age: 18 Years – 35 Years
• Healthy volunteers: Accepted

Summary

Research has shown that chronic pain is related to variety of perceptual distortions. Little is known on how acute pain experience influences perception, especially precision of touch. This project is aiming to test the hypothesis of pain as a process of biological value leading to improvement in tactile acuity.

Detailed description

This project has following goals: 1. To test the hypothesis of pain as a process of biological value leading to improvement in tactile acuity 2. To investigate intra-rater reliability of tests measuring perceptual distortions in pain 3. To investigate validity of novel tests measuring perceptual distortions in pain 4. To explore the influence of acute neck pain on left/right recognition task 5. To explore the effect of acute neck pain on body perception

Conditions

• Neck Pain, Posterior
• Pain, Acute

Interventions

Type	Name	Description
OTHER	Saline injection	In the saline injection condition, acute neck pain will be induced via 0.5 ml hypertonic (5% NaCl) saline bolus injection which is a commonly used model of acute pain. Saline will be injected into the right (or left) trapezius muscle at the level of C7 cervical level. Injections will be performed by a physician under ultrasound imaging guidance to ensure that each single injection will be equally placed at the same depth. The side for the pain induction will be randomised across subjects. The place of needle insertion and corresponding point on the opposite side of the body will be covered by placing a small piece of adhesive plaster to ensure blinding.
OTHER	Sham injection	In the sham-injection condition (nocebo comparator), a real needle will be shown to the participants to imitate and produce the anticipation of a pain experience. A pinprick sensation will be produced by a weighted stimulus applied perpendicularly to the skin without piercing the skin. A stimulus of 512 millinewtons (mN) will be used to produce a pinprick sensation and activation of cutaneous nociceptors. Adhesive tapes covering stimulation points will also be provided. The stimuli will be applied in exactly the same spot as the real injection in previous experimental condition.

Timeline

• Start date: 2018-04-20
• Primary completion: 2018-06-15
• Completion: 2018-07-20
• First posted: 2018-04-11
• Last updated: 2018-08-08

Locations

1 site across 1 country: Poland