Repetitive Thinking in Fibromyalgia
Repetitive Thinking in Fibromyalgia
Some fibromyalgia patients may use inappropriate emotional regulation strategies to respond
 to pain. Rumination could be one of this inefficient regulation strategies. The investigators
 believe that the use of rumination strategies to respond to the discomfort of daily physical
 activity would maintain and aggravate a negative emotional state after the effort.
 Distraction would be a more effective strategy to cope with pain. From this data, the
 investigators want to explore the causal link between rumination and negative affectivity
 after physical activity in fibromyalgia using an experimental design.
Fibromyalgia is a disorder characterized by widespread musculoskeletal pain accompanied by
 fatigue, sleep, memory and mood issues. As with any condition of chronic pain, psychological
 mechanisms can help maintain discomfort and pain. These mechanisms may hinder the recovery of
 physical activity. Some patients may use cognitive strategies of emotional regulation that
 are ineffective to cope with pain and discomfort of everyday activities, such as rumination.
 The literature suggests that this process is linked to the physical and psychological
 difficulties of fibromyalgia. However, no study has revealed a causal link between rumination
 and negative affectivity in a context of physical activity in this population. The
 investigators want to test this hypothesis by directly manipulating the style of information
 processing following a relevant activity for these patients: climbing steps. In one group the
 investigators will induce rumination right after climbing the steps. In the other group the
 investigators will induce distraction. Patient with Fibromyalgia will be recruited at the
 Pain Center of CHU-Amiens. Patients will complete different scales before to climb steps and
 after experimental induction. The investigators hypothesize that Patients using a rumination
 strategy after an uncomfortable physical activity will experience a greater subjective
 discomfort than patients using a distraction strategy.
Inclusion Criteria:

 -  Adults Patients

 -  Free and informed consent signed.

 -  French native speaker, writer and reader.

 -  according 1990 American College of Rheumatology criteria : Patients with diffuse pain
 for more than three months and with digital palpation pain on more than 11 insertion
 points.

 Exclusion Criteria:

 -  minor patients

 -  Adult major under administrative protection

 -  Patient with severe psychosis or depression or severe anxiety or impulsivity as
 assessed by the clinician