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@ARTICLE{Oberste:181264,
author = {M. Oberste and P. Hartig and W. Bloch and B. Elsner and
H.-G. Predel and B. Ernst and P. Zimmer$^*$},
title = {{C}ontrol {G}roup {P}aradigms in {S}tudies {I}nvestigating
{A}cute {E}ffects of {E}xercise on {C}ognitive
{P}erformance-{A}n {E}xperiment on {E}xpectation-{D}riven
{P}lacebo {E}ffects.},
journal = {Frontiers in human neuroscience},
volume = {11},
issn = {1662-5161},
address = {Lausanne},
publisher = {Frontiers Research Foundation},
reportid = {DKFZ-2022-01907},
pages = {600},
year = {2017},
note = {POF Topic: 317},
abstract = {Introduction: Many studies report improvements in cognitive
performance following acute endurance exercise compared to
control group treatment. These cognitive benefits are
interpreted as a result of a physiological response to
exercise. However, it was also hypothesized that
expectation-driven placebo effects account for these
positive effects. The purpose of this study was to
investigate the differences between expectations for
cognitive benefits toward acute endurance exercise and
multiple control group treatments. Methods: Healthy
individuals (N = 247, 24.26 ± 3.88 years) were randomized
to eight different groups watching videos of a moderate, a
vigorous exercise treatment or one control group treatment
(waiting, reading, video-watching, stretching, myofascial
release workout, and very light exercise). Then, they were
introduced to three commonly used cognitive test procedures
in acute exercise-cognition research (Stroop-test,
Trail-Making-test, Free-recall-task). Participants rated the
effect they would expect on their performance in those
tasks, if they had received the treatment shortly before the
task, on an 11-point Likert scale. Results: No significantly
different expectations for cognitive benefits toward acute
moderate exercise and control group treatments could be
revealed. Participants expected significantly worse
performance following vigorous exercise compared to
following waiting and stretching for all cognitive tests.
Significantly worse performance after vigorous exercise
compared to after very light exercise was expected for
Stroop and Free-recall. For Free-recall, participants
expected worse performance after vigorous exercise compared
to myofascial release training as well. Conclusion: Our
results indicate that expectation-driven placebo effects are
unlikely to cause the reported greater cognitive
improvements following acute moderate and vigorous endurance
exercise compared to following common control group
treatments.},
keywords = {acute exercise (Other) / cognition (Other) / control group
(Other) / expectation (Other) / memory (Other) / placebo
effect (Other)},
cin = {G210},
ddc = {610},
cid = {I:(DE-He78)G210-20160331},
pnm = {317 - Translational cancer research (POF3-317)},
pid = {G:(DE-HGF)POF3-317},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29276483},
pmc = {pmc:PMC5727042},
doi = {10.3389/fnhum.2017.00600},
url = {https://inrepo02.dkfz.de/record/181264},
}