Vink, Mark, Vink-Niese, Friso · Work (Reading, Mass.) · 2020 · DOI
This study examined whether graded exercise therapy (GET)—a treatment that gradually increases physical activity—actually helps people with ME/CFS return to work. The researchers found that while previous reviews claimed GET improved tiredness, these claims were based on unreliable self-reported outcomes in studies with serious flaws. When looking at objective measures and real-world outcomes, GET did not help people work better and may have harmed at least half of patients.
This analysis is critical because treatment recommendations for ME/CFS directly impact patient safety and quality of life. If a widely-endorsed treatment causes harm in half of patients without restoring function or work capacity, this represents a significant public health concern that warrants reassessment of clinical guidelines and research methodology standards in ME/CFS treatment trials.
This study does not prove that all forms of exercise are harmful for all ME/CFS patients, nor does it establish the optimal rehabilitation approaches for this population. It also does not demonstrate what effective treatments should be recommended instead, only that GET as currently studied and recommended does not achieve stated objectives. The study's conclusions about harm rely partly on patient surveys rather than exclusively on randomized trial data.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Vink, Mark & Vink-Niese, Friso (2020). Graded exercise therapy does not restore the ability to work in ME/CFS - Rethinking of a Cochrane review.. Work (Reading, Mass.). https://doi.org/10.3233/WOR-203174
BibTeX
@article{mecfsatlas-vink-2020-graded-exercise,
author = {Vink, Mark and Vink-Niese, Friso},
title = {Graded exercise therapy does not restore the ability to work in ME/CFS - Rethinking of a Cochrane review.},
journal = {Work (Reading, Mass.)},
year = {2020},
doi = {10.3233/WOR-203174},
note = {PubMed: 32568149},
url = {https://www.mecfsatlas.com/evidence/vink-2020-graded-exercise},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/vink-2020-graded-exercise
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