Fatigue severity scale (FSS): a full guide for researchers and clinicians

Summary

The Fatigue Severity Scale (FSS) was developed by Lauren B. Krupp, Nicholas G. LaRocca, Joseph Muir-Nash, and Alfred D. Steinberg. First published in 1989 in the Archives of Neurology, the FSS has since become a cornerstone in fatigue assessment. Indeed, its significance is underscored by over 7000 citations on Google Scholar, highlighting its widespread adoption and utility in both clinical and research settings. Consequently, professionals can leverage this tool to enhance patient care and advance research in conditions where fatigue is a prominent symptom.

This article offers an in-depth exploration of the FSS, providing researchers and clinicians with actionable insights into its structure, validation, applications, and overall value in understanding and managing fatigue.