Cited by 127Neurogenetic and Muscular Disorders ResearchMuscle Physiology and DisordersFibromyalgia and Chronic Fatigue Syndrome Research

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The development of a model of fatigue in neuromuscular disorders: A longitudinal study

Abstract

Background Severe fatigue is reported by the majority of patients with three relatively common types of neuromuscular disorders. Objective This study aimed to identify predictors of fatigue in a longitudinal study and to develop a model of fatigue in patients with three neuromuscular disorders. Methods One hundred ninety-eight patients [60 facioscapulohumeral muscular dystrophy (FSHD), 70 adult-onset myotonic dystrophy (MD), and 68 hereditary motor and sensory neuropathy type I (HMSN-I) patients] were studied twice during an 18-month period. Fatigue severity was assessed by the Checklist Individual Strength. A multidimensional assessment method was used, including self-report questionnaires, a daily Self-Observation List, and physical activity (actometer). Muscle strength was determined using the Medical Research Council scale. Structural equation modeling was used to develop and test a model of factors contributing to the persistence of experienced fatigue. Results Muscle strength, self-reported physical activity, sleep disturbances, and pain at baseline contributed directly or indirectly to fatigue and impairment at follow-up. Lower muscle strength contributed to lower levels of physical activity, which, in turn, contributed to fatigue severity. The model showed excellent fit for the whole group of neuromuscular disorders. In FSHD, pain also contributed to physical activity. A model with the actometer as measurement for actual physical activity instead of self-report showed…

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Research works printed but not linked: 25

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Metadata

Authors
Kalkman, J. S., Schillings, M. L., Zwarts, M. J., van Engelen, B. G. M., & Bleijenberg, G.
Affiliations
Radboud University Medical Center (NL)
Corresponding author
Kalkman, Joke S.
Venue
Journal of Psychosomatic Research
Publisher
Elsevier BV
Published
2007-05
Volume
62
Issue
5
Pages
571-579
ISSN
0022-3999 (ISSN-L)
OpenAlex
W2095326048
Cited by
127
References
2
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 4 · 2022: 7 · 2021: 11 · 2020: 4 · 2019: 11 · 2018: 6 · 2017: 12 · 2016: 9 · 2015: 6 · 2014: 6 · 2013: 12 · 2012: 9
FWCI
3.43
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Psychosomatic Research (publishedVersion)
  • PubMed (publishedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • Radboud Universiteit
  • Fondation Charcot
Topics
  • Health Sciences › Medicine › Genetics (clinical) › Neurogenetic and Muscular Disorders Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Fibromyalgia and Chronic Fatigue Syndrome Research
Keywords
fatigue, neuromuscular disorders, facioscapulohumeral muscular dystrophy, adult-onset myotonic dystrophy, hereditary motor and sensory neuropathy type I, muscle strength, physical activity, sleep disorders, pain, predictors of fatigue, Checklist Individual Strength
MeSH terms
Activities of Daily Living, Adult, Charcot-Marie-Tooth Disease, Depressive Disorder, Fatigue, Female, Humans, Male, Middle Aged, Models, Psychological, Motor Activity, Myotonic Dystrophy, Neuropsychological Tests, Pain, Risk Factors, Sick Role, Sleep Wake Disorders, Statistics as Topic, Sickness Impact Profile, Muscular Dystrophy, Facioscapulohumeral, Muscle Strength

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