title: Static postural sway of women with and without fibromyalgia syndrome: A cross-sectional study.
abstract: BACKGROUND
  There is a frequent complaint about balance problems among fibromyalgia syndrome patients; however, there are not enough studies that have shown static postural sway of women with fibromyalgia syndrome. This study aimed to compare static postural sway of women with and without fibromyalgia syndrome.
  
  
  METHODS
  This is a cross-sectional study in which twenty-nine women with fibromyalgia syndrome and 20 without took part. A posturography evaluation was performed in six different situations (bipedal, right tandem and left tandem, with eyes opened and closed), and questionnaires for clinical depression symptoms, clinical anxiety symptoms, sleep quality, and Visual Analogue Scales for Pain and Fatigue were applied. Mann-Whitney U test was used to check differences among groups; Wilcoxon matched-pair test was used to check differences intragroup; Cohen d coefficient was used to measure effect sizes and Pearson Correlation Coefficient was used for correlations among variables. Level of significance adopted was 5%.
  
  
  RESULTS
  Women with fibromyalgia syndrome have presented worse postural sway than women without fibromyalgia syndrome in all situations (P<0.05), and worse scores in all questionnaires (P<0.05). In the eyes closed situations, women with fibromyalgia syndrome presented worse postural sway than women without in the same conditions.
  
  
  CONCLUSIONS
  Women with fibromyalgia syndrome have worse performance in the static posture test, more prominent in reduced support bases with eyes closed. Pain, fatigue, depression and anxiety may have directly influenced postural sway in fibromyalgia syndrome patients.
authors.affiliation: Physical Therapy Department, Federal University of Sao Carlos, SP, Brazil; Biotechnology Post-Graduate Program, Federal University of Sao Carlos, SP, Brazil.
authors.forename: Deborah Colucci
authors.initials: DC
authors.lastname: Trevisan
authors.affiliation: Physical Therapy Department, Federal University of Sao Carlos, SP, Brazil; Physical Therapy Post-Graduate Program, Federal University of Sao Carlos, SP, Brazil. Electronic address: pdriusso@ufscar.br.
authors.forename: Patricia
authors.initials: P
authors.lastname: Driusso
authors.affiliation: Physical Therapy Department, Federal University of Sao Carlos, SP, Brazil; Physical Therapy Department, Centro Universitario Central Paulista, SP, Brazil.
authors.forename: Mariana Arias
authors.initials: MA
authors.lastname: Avila
authors.affiliation: Gerontology Department, Federal University of Sao Carlos, SP, Brazil.
authors.forename: Karina
authors.initials: K
authors.lastname: Gramani-Say
authors.affiliation: Biotechnology Post-Graduate Program, Federal University of Sao Carlos, SP, Brazil; Physics Department, Federal University of Sao Carlos, SP, Brazil.
authors.forename: Fernando Manuel Araujo
authors.initials: FMA
authors.lastname: Moreira
authors.affiliation: Physical Therapy Department, Federal University of Sao Carlos, SP, Brazil; Biotechnology Post-Graduate Program, Federal University of Sao Carlos, SP, Brazil; Physical Therapy Post-Graduate Program, Federal University of Sao Carlos, SP, Brazil.
authors.forename: Nivaldo Antonio
authors.initials: NA
authors.lastname: Parizotto
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005221:Fatigue / Q000503:physiopathology; D005260:Female; D005356:Fibromyalgia / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D010146:Pain / Q000503:physiopathology; D010147:Pain Measurement; D004856:Postural Balance / Q000502:physiology*; D011795:Surveys and Questionnaires
keywords: Depression; Fatigue; Fibromyalgia; Postural sway