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Deconstructing post-exertional malaise: An exploratory factor analysis.

Authors
  • McManimen, Stephanie L1
  • Sunnquist, Madison L1
  • Jason, Leonard A1
  • 1 DePaul University, USA.
Type
Published Article
Journal
Journal of health psychology
Publication Date
Aug 01, 2016
Identifiers
DOI: 10.1177/1359105316664139
PMID: 27557649
Source
Medline
Keywords
License
Unknown

Abstract

Post-exertional malaise is a cardinal symptom of myalgic encephalomyelitis and chronic fatigue syndrome. There are two differing focuses when defining post-exertional malaise: a generalized, full-body fatigue and a muscle-specific fatigue. This study aimed to discern whether post-exertional malaise is a unified construct or whether it is composed of two smaller constructs, muscle fatigue and generalized fatigue. An exploratory factor analysis was conducted on several symptoms that assess post-exertional malaise. The results suggest that post-exertional malaise is composed of two empirically different experiences, one for generalized fatigue and one for muscle-specific fatigue.

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