HEALTH NEWS

Study Title:

Fibromyalgia and Obesity

Study Abstract

Abstract
Fibromyalgia syndrome (FMS) is a prevalent and disabling chronic pain disorder. Past research suggests that obesity is a common comorbidity and may be related to the severity of FMS. The main objective of the present study was to evaluate the relationships between FMS and obesity in the multiple FMS-related domains: hyperalgesia, symptoms, physical abilities, and sleep. A total of 215 FMS patients completed a set of self-report inventories to assess FMS-related symptoms and underwent the tender point (TP) examination, physical performance testing, and 7-day home sleep assessment. Forty-seven percent of our sample was obese and an additional 30% was overweight. Obesity was related significantly to greater pain sensitivity to TP palpation particularly in the lower body areas, reduced physical strength and lower-body flexibility, shorter sleep duration, and greater restlessness during sleep. The results confirmed that obesity is a prevalent comorbidity of FMS that may contribute to the severity of the problem. Potential mechanisms underlying the relationship are discussed.

Perspective
This report presents how obesity may be interrelated to fibromyalgia pain, disability, and sleep. We found that obesity is common in FMS. Approximately half of our patients were obese and an additional 30% were overweight. We also found that obesity in FMS was associated with greater pain sensitivity, poorer sleep quality, and reduced physical strength and flexibility. The results suggest that obesity may aggregate FMS and weight management may need to be incorporated into treatments.

From press release:

Afflicting up to 5 percent of the U.S. population, mostly women, fibromyalgia is characterized by widespread pain and range of function problems. A new study in The Journal of Pain reports there is close association between obesity and disability in fibromyalgia patients.

The purpose of the study, conducted by University of Utah researchers, was to evaluate the relationship between fibromyalgia and obesity. They hypothesized that obesity significantly adds to the disease and disability burden of the condition. Two hundred fifteen fibromyalgia patients were evaluated in the study and given several physical tests to measure strength, flexibility, range of motion, and strength. Heart rates and sleep quality also were assessed.

The authors reported that consistent with previous studies, obesity is common among those with fibromyalgia. Half the study sample was obese and an additional thirty percent were overweight. Also consistent with previous findings, obese patients in this study showed increased pain sensitivity, which was more pronounced in lower body areas. The obese patients also had impaired flexibility in the lower body and reduced strength.

The study concluded that obesity is a common comorbidity of fibromyalgia that may compromise clinical outcomes. The adverse impact of obesity is evidenced by hyperalgesia, disability, impaired quality of life and sleep problems. The authors also noted that recent evidence suggests weight loss improves fibromyalgia symptoms, perhaps resulting from patients adopting healthier lifestyles and taking more positive attitudes toward symptom management, and overall quality of life.

Study Information

1.Akiko Okifuji, Gary W. Donaldson, Lynn Barck, Perry G. Fine.
Relationship Between Fibromyalgia and Obesity in Pain, Function, Mood, and Sleep.
The Journal of Pain,
2010 December
University of Utah