Evidence map›Paper›PMID 27557649›Full record

ArticleJournal of health psychology2019

Deconstructing post-exertional malaise: An exploratory factor analysis.

Stephanie L McManimen, Madison L Sunnquist, Leonard A Jason

Open access · greenAbstract read
In one paragraph

Article in Journal of health psychology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Recent research in myalgic encephalomyelitis/chronic fatigue syndrome: an evidence map.Health technology assessment (Winchester, England) · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Stephanie L McManimenDePaul University, USA.
Madison L SunnquistDePaul University, USA.
Leonard A JasonDePaul University, USA.
DePaul University · US

Funding

A prospective study of CFS following infectious mononucleosis in college studentsR01AI105781 · NIAID · LURIE CHILDREN'S HOSPITAL OF CHICAGO · PI JASON, LEONARD A, KATZ, BEN Z. · 2014 to 2018
$3.4M
Pediatric CFS in a Community-Based SampleR01HD072208 · NICHD · DE PAUL UNIVERSITY · PI JASON, LEONARD A · 2013 to 2017
$2.0M
NIAID NIH HHS R01 AI105781NICHD NIH HHS R01 HD072208
6 · The paper itself

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.

Indexed as

Muscle FatigueAdultDiagnosis, DifferentialExercise TestFactor Analysis, StatisticalFatigue Syndrome, ChronicFemaleHumansMaleMiddle AgedPsychometricsSurveys and Questionnaireschronic fatigue syndromefactor analysismyalgic encephalomyelitisoperationalizationpost-exertional malaise

Identifiers

PMID27557649
PMCPMC5325824
OpenAlexW2511143543

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.