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Cardiovascular Function and Endogenous Pain Modulation

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Cardiovascular Autonomic Function and Endogenous Pain Modulation

The study has three aims: 1. To investigate the influence of cardiovascular autonomic function on pain sensitivity at rest in patients with fibromyalgia and age- and sex-matched controls 2. To investigate the influence of cardiovascular autonomic function at baseline and during exercise on the pain response following submaximal isometric exercise 3. To study the relation between the pain response following physical and cognitive tasks (exercise and mental math, respectively).

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No pharmaceutical medication involved common.study.methods.has-drugs-no
Patients and healthy individuals accepted common.study.methods.is-healthy-no

Exercise

Subjects will perform isometric (static) handgrip exercise at submaximal intensity for four minutes. The exercise will be performed while the subject is seated, and the elbow bent at around 90° and unsupported. Subjects will be asked to rate their pain using numerical pain rating scale that ranges from 0 (no pain) to 10 (worst pain), perceived exertion (RPE) from 0 (Nothing at all) to 10 (extremely strong), and perceived stress from 0 (not stressed at all) to 10 (extremely stressed). The rating ...read more on ClinicalTrials.org

Cognitive Task

The mental math task, which is also known as serial subtraction test, will be performed for four minutes. Subjects will be asked to rate their pain intensity and perceived stress before, at the middle and at the end of the mental math task.

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The Influence of Cardiovascular Autonomic Function on Endogenous Pain Modulation Before and After Exercise and Cognitive Task in Fibromyalgia

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NCT03911609

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dL92ve