The main objective of this research work is to evaluate and quantify the hypoalgesia generated by motor imagery influenced by the presence of expectations.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Enrollment
90
A positive expectation of the effect of motor imagery will be given before beginning the mental practice of imagination. "This task will generate hypoalgesia"
A negative expectation of the effect of motor imagery will be given before beginning the mental practice of imagination. "This task will not generate hypoalgesia"
This group will act as a control. No expectations will be given that will influence the participant.
CSEU La Salle
Madrid, Spain
Pain pressure threshold
Pressure Pain Threshold (PPT) is one of these tests and it is defined as the minimum force applied which induces pain. The measurement shall be carried out by using an algometer (pressure device that induces mechanical stimuli) is to standardize the amount of pressure applied in the neck region. The reliability of pressure pain thresholds according to raters or measurement frequencies is relatively high.
Time frame: Change from baseline and immediately post-intervention
Thermal threshold
This variable will evaluate three aspects. Cold detection threshold, heat detection threshold and heat pain threshold. A specialized and validated instrument is used which consists of a sensor with a resistance that raises and lowers the temperature in a controlled way between 20 and 50ºC.
Time frame: Change from baseline and immediately post-intervention
Heart Rate
Heart Rate will be measured by three electrodes located in the left area of the chest. One of the electrodes is placed in the middle zone while a second electrode is positioned on the lateral side, and a third one on the lower left side, below the first electrode.
Time frame: Change from baseline and immediately post-intervention
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A positive expectation will be given during the performance of the mental practice. "This is working very well"
A negative expectation will be given during the performance of the mental practice. "This is working very bad"
This group will act as a control. No expectations will be given that will influence the participant.