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Related Concept Videos

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Related Experiment Video

Updated: Mar 16, 2026

The Effect of Anti-Fatigue Decoction on the Behaviors and Serological Indicators in a Central Fatigue Rat Model
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Fatigue in Multiple Sclerosis: Misconceptions and Future Research Directions.

Thorsten Rudroff1, John H Kindred1, Nathaniel B Ketelhut1

  • 1Department of Health and Exercise Science, Colorado State University , Fort Collins, CO , USA.

Frontiers in Neurology
|August 18, 2016
PubMed
Summary

Multiple sclerosis (MS) fatigue lacks clear definitions and effective treatments. This perspective proposes a new model defining fatigue as decreased performance due to central, psychological, or peripheral factors, guiding future research.

Keywords:
multiple sclerosisneuroimagingperceptionsperformance fatigabilityquestionnaires

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Area of Science:

  • Neurology
  • Neuroscience
  • Rehabilitation Medicine

Background:

  • Fatigue is a primary disabling symptom in multiple sclerosis (MS).
  • Current understanding of MS fatigue's pathophysiology and effective treatments remains limited.
  • A lack of a unified, testable definition hinders research progress.

Purpose of the Study:

  • To propose a novel, unified definition and model for MS-related fatigue.
  • To guide the development of new research strategies for understanding and treating MS fatigue.
  • To address the limitations of current fatigue assessment methods.

Main Methods:

  • This perspective article proposes a conceptual model and definition of fatigue.
  • It analyzes the strengths and weaknesses of existing fatigue measurement tools.
  • It suggests new research strategies incorporating mechanistic studies and validated experimental models.

Main Results:

  • A proposed definition: fatigue as decreased physical/mental performance from central, psychological, and/or peripheral factors.
  • The model considers task, environment, and individual capacity.
  • Identifies needs for multi-measure, mechanistic studies.

Conclusions:

  • The proposed definition and model offer a framework for objective fatigue assessment in MS.
  • New research strategies are crucial for elucidating MS fatigue origins.
  • This approach may facilitate the development of targeted, effective MS fatigue treatments.