Perceptual Distortions in Acute Neck Pain
- Conditions
- Pain, AcuteNeck Pain, Posterior
- Interventions
- Other: Saline injectionOther: Sham injection
- Registration Number
- NCT03495076
- Lead Sponsor
- The Jerzy Kukuczka Academy of Physical Education in Katowice
- Brief 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
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 30
- Only participants without tactile dysfunction will be included.
- Participants reporting availability during the days in which the research will be performed.
- current pain experience
- episodes of neck
- thoracic or lumbar pain lasting more than 24 hours within previous month
- history of chronic pain, i.e. pain lasting more than three-month period
- comorbidities affecting nervous system
- cardio-vascular diseases
- psychiatric illnesses
- any disease requiring systematic drug consumption
- diagnosed scoliosis.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SEQUENTIAL
- Arm && Interventions
Group Intervention Description Saline injection Saline injection In the saline condition, acute neck pain will be induced via 0.5 ml hypertonic (5% NaCl) saline solution. Sham injection Sham injection In the sham injection condition, a real needle will be shown to the participants to imitate and produce the anticipation of a pain experience.
- Primary Outcome Measures
Name Time Method Tactile acuity measured by two-point discrimination test (TPD). TPD change from baseline at 30 seconds post-manipulation period (e.g. saline injection). Mechanical callipers will be delicately applied to the spot just below the location where real or sham injection will be administered. Tactile stimuli will be applied until the very first blanching of the skin. Testing will be commenced with 0 mm between the two calliper's tips, and then the distance between them will be gradually increased until participants will able to verbally report that two points had been touched instead of one. Subsequently, the descending sequence will be applied until the perception of the two points disappeared.
- Secondary Outcome Measures
Name Time Method Sensory dissociation measured by two-point estimation task (TPE). Measured at baseline and ~30 seconds after manipulation (e.g. saline injection). One tactile stimulus will be applied until the very first blanching of the skin, with a 120 mm horizontal separation between the calipers' tips. Participants will be then asked to indicate with their calipers the distance they have perceived.
Laterality judgements measured by left/right recognition application. Measured at baseline and ~30 seconds after manipulation (e.g. saline injection). A set of images displaying human neck in different orientation in space will be show to participants. The goal of the task is to decide whether given picture depicts neck rotated to the left or right or flexed into left o right side. The accuracy and response time is measured.
Trial Locations
- Locations (1)
The Jerzy Kukuczka Academy of Physical Education
🇵🇱Katowice, Poland