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Does rehabilitation decrease shoulder muscle activity in fibromyalgia in work or housework tasks? An

Monika Löfgren1, Lisbet Broman, Jan Ekholm

  • 1Department of Clinical Sciences, Karolinska Institutet Danderyd Hospital, Stockholm, Sweden. monika.lofgren@ki.se

Work (Reading, Mass.)
|October 30, 2008
PubMed
Summary
This summary is machine-generated.

Patients with fibromyalgia (FM) can reduce muscle activity during work and home tasks after rehabilitation. This improvement in muscle engagement correlates with decreased pain and perceived exertion, enhancing daily functioning.

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Area of Science:

  • Rehabilitation Medicine
  • Neuroscience
  • Ergonomics

Background:

  • Fibromyalgia (FM) is a chronic condition characterized by widespread pain and fatigue.
  • Muscle activity patterns in patients with FM during daily tasks are not well understood.
  • Rehabilitation may offer strategies to improve functional capacity in FM patients.

Purpose of the Study:

  • To evaluate if fibromyalgia patients exhibit reduced muscle activity (surface EMG) in shoulder and arm muscles post-rehabilitation compared to pre-rehabilitation.
  • To assess changes in muscle activity during specific work and home care tasks.
  • To correlate muscle activity changes with pain intensity and perceived exertion.

Main Methods:

  • Surface electromyography (EMG) measured muscle activity in 16 female FM patients and 10 healthy controls.
  • Measurements were taken during computer typing and three housework tasks before and after an individualized rehabilitation program.
  • Pain intensity and perceived exertion were assessed using the Borg CR100 scale.

Main Results:

  • Fibromyalgia patients demonstrated a greater decrease in trapezius pars descendens muscle activity on the non-dominant side during computer typing and ironing compared to healthy subjects.
  • A reduction in pain intensity and perceived exertion was observed following computer typing and ironing.
  • These subjective improvements coincided with the objective decrease in muscle activity.

Conclusions:

  • Patients with fibromyalgia can learn to perform work and home care tasks with reduced muscle activity in the trapezius pars descendens after undergoing a rehabilitation program.
  • The observed decrease in muscle activity is associated with reduced pain and perceived exertion.
  • Rehabilitation programs may be effective in improving functional performance and reducing the symptomatic burden in fibromyalgia.