title: Positive associations between physical and cognitive performance measures in fibromyalgia.
abstract: OBJECTIVE
  To investigate the associations between perceived physical function (self-report) and physical and cognitive performance (objective assessments) in persons with fibromyalgia (FM).
  
  
  METHODS
  Correlational study.
  
  
  METHODS
  Exercise testing laboratory in Southern California.
  
  
  METHODS
  Community-residing ambulatory adults meeting the American College of Rheumatology 1990 criteria for FM (N=68; mean age, 59.5y).
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Composite Physical Function scale, Senior Fitness Test (3 items), Fullerton Advanced Balance scale, 30-foot walk, Trail Making Test parts A and B, Digit Symbol Substitution Test, a composite score of these 3 cognitive measures, attention/executive function composite, processing speed composite, problem solving, inhibition, and episodic memory composite.
  
  
  RESULTS
  Hierarchical regression analyses showed that after controlling for age and FM symptoms, better physical performance (based on assessments, not self-report) was associated with higher cognitive function in attention/executive function, processing speed, problem solving, and inhibition.
  
  
  CONCLUSIONS
  Researchers should continue to investigate the relationship between physical and cognitive function in both clinical and nonclinical populations, as well as explore changes across time. Because physical activity has been associated with neural improvements, further research may identify whether particular mechanisms, such as neurogenesis, synaptogenesis, or changes in inflammatory marker levels, are involved.
authors: Department of Psychology, California State University Fullerton, Fullerton, CA 92834-6846, USA. bcherry@fullerton.edu
authors: Barbara J
authors: BJ
authors: Cherry
authors: Laura
authors: L
authors: Zettel-Watson
authors: Jennifer C
authors: JC
authors: Chang
authors: Renee
authors: R
authors: Shimizu
authors: Dana N
authors: DN
authors: Rutledge
authors: C Jessie
authors: CJ
authors: Jones
mesh_terms: D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D001288:Attention / Q000502:physiology; D003071:Cognition / Q000502:physiology; D003072:Cognition Disorders / Q000175:diagnosis* / Q000453:epidemiology* / Q000523:psychology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D056344:Executive Function; D005080:Exercise Test; D005260:Female; D005356:Fibromyalgia / Q000175:diagnosis* / Q000453:epidemiology* / Q000523:psychology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010147:Pain Measurement; D010808:Physical Examination / Q000379:methods; D010809:Physical Fitness / Q000502:physiology; D012044:Regression Analysis; D018570:Risk Assessment; D012647:Self-Assessment; D017678:Sex Distribution; D018434:Sickness Impact Profile