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@ARTICLE{Linnhoff:257572,
author = {Linnhoff, Stefanie and Haghikia, Aiden and Zähle, Tino},
title = {{E}ffects of repetitive twice-weekly transcranial direct
current stimulations on fatigue and fatigability in people
with multiple sclerosis.},
journal = {Scientific reports},
volume = {13},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {DZNE-2023-00452},
pages = {5878},
year = {2023},
abstract = {Fatigue is associated with a dramatically decreased quality
of life in people with multiple sclerosis (pwMS). It refers
to a constant subjective feeling of exhaustion and
performance decline, known as fatigability. However,
inconsistency and heterogeneity in defining and assessing
fatigue have led to limited advances in understanding and
treating MS-associated fatigue. Transcranial direct current
stimulation (tDCS) has emerged as a promising,
non-pharmaceutical treatment strategy for subjective
fatigue. However, whether repetitive tDCS also have
long-term effects on time-on-task performance has not yet
been investigated. This pseudorandomized, single-blinded,
and sham-controlled study investigated tDCS effects on
behavioral and electrophysiological parameters. 18 pwMS
received eight twice-weekly 30 min stimulations over the
left dorsolateral prefrontal cortex. Fatigability was
operationalized as time-on-task-related changes in reaction
time variability and P300 amplitude. Additionally,
subjective trait and state fatigue ratings were assessed.
The results revealed an overall decrease in subjective trait
fatigue ratings that lasted at least four weeks after the
stimulations. However, the ratings declined after both
anodal and sham tDCS. No effects were found on subjective
state fatigue and objective fatigability parameters. Linear
Mixed Models and Bayesian Regression models likewise favored
the absence of a tDCS effect on fatigability parameters. The
results confirm the complex relationship between
MS-associated fatigue and fatigability. Reliable and
clinically relevant parameters need to be established to
extend the potential of tDCS for treating fatigability.
Furthermore, our results indicate that consecutive
stimulations rather than twice-weekly stimulations should be
the preferred stimulation scheme in future studies.},
keywords = {Fatigue: diagnosis / Humans / Transcranial Direct Current
Stimulation: methods / Multiple Sclerosis: complications /
Quality of Life / Bayes Theorem / Fatigue: complications /
Fatigue: etiology / Fatigue: physiopathology / Fatigue:
therapy / Multiple Sclerosis: physiopathology / Single-Blind
Method / Dorsolateral Prefrontal Cortex / Task Performance
and Analysis / Reaction Time},
cin = {AG Düzel 3},
ddc = {600},
cid = {I:(DE-2719)5000006},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37041183},
pmc = {pmc:PMC10090173},
doi = {10.1038/s41598-023-32779-y},
url = {https://pub.dzne.de/record/257572},
}