Is fatigue associated with aerobic capacity and muscle strength in people with Multiple Sclerosis: a systematic review and meta-analysis

Scott Rooney, Leslie Wood, Fiona Moffat, Lorna Paul

Research output: Contribution to journalArticle

Abstract

Objective: Determine the relationship between self-reported fatigue and aerobic capacity and muscle strength in people with Multiple Sclerosis (MS).Data sources: Four databases (CINAHL, MEDLINE, ProQuest, and Web of Science Core Collections) were searched up to October 2018.Study selection: Cross-sectional or longitudinal studies that reported the association between self-reported fatigue and aerobic capacity or objectively measured muscle strength in people with MS were included. Data extraction: Study details, participant demographics, outcome measurement protocols, and the correlation coefficient derived from the association between fatigue and aerobic capacity or muscle strength at baseline was extracted, and methodological quality of included studies was assessed using the Joanna Briggs Institute Appraisal Checklist for Analytical Cross-sectional Studies.Data synthesis: Ten studies were identified, of which five examined the association between fatigue and aerobic capacity and seven examined the association between fatigue and muscle strength. Meta-analysis of the extracted correlation coefficients was performed using the Hedges-Olkin method, and pooled correlation coefficients demonstrated a moderate, negative association between fatigue and aerobic capacity (r = -0.471; 95% CI = -0.644, -0.251; p<0.001), and a weak, negative association between fatigue and muscle strength (r = -0.224; 95% CI = -0.399, -0.032; p = 0.022). Conclusions: The results of this meta-analysis suggest that higher levels of aerobic capacity are associated with lower fatigue. Therefore, this finding highlights the potential role of aerobic exercise interventions in managing fatigue. Conversely, the relationship between fatigue and muscle strength was weak and inconsistent, and further studies are required to examine the association between these variables.
Original languageEnglish
Pages (from-to)2193-2204
Number of pages12
JournalArchives of Physical Medicine and Rehabilitation
Volume100
Issue number11
Early online date6 Aug 2019
DOIs
Publication statusPublished - Nov 2019

Keywords

  • fatigue
  • multiple sclerosis
  • muscle strength
  • rehabilitation

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