Document Detail

Acute exercise influences reward processing in highly trained and untrained men.
MedLine Citation:
PMID:  23059859     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: Physical activity activates brain regions and transmitter systems that represent the reward system (i.e., the ventral striatum [VS] and dopamine). To date, the effect of training status and acute exercise on reward processing has not been investigated systematically in humans. To address this issue, we examined highly trained (HT) physically inactive (PIA) men with a monetary incentive delay (MID) paradigm.
METHODS: We used functional magnetic resonance imaging (fMRI) to investigate the neural correlates of monetary incentive processing after acute exercise. HT and PIA subjects were randomized into two groups. Subjects in one group ran on a treadmill (T) for 30 min at 60%-70% of their maximal oxygen uptake (V˙O2max), whereas subjects in the other group performed placebo exercise (P). Approximately 1 h after exercise, the MID task was conducted. Mood was assessed using the Positive and Negative Affect Schedule before and after the exercise intervention.
RESULTS: The psychological assessment showed that exercise significantly increased mood in HT and PIA men. During gain anticipation and gain feedback of the MID task, the VS was significantly stronger activated in the placebo group than in the treadmill group. No effect of training status and no interactions between training status and acute exercise were found.
CONCLUSIONS: Acute exercise diminishes sensitivity to monetary rewards in humans. This finding is discussed concerning interactions between tonic and phasic dopamine in the VS.
Nina Bothe; Elisabeth Zschucke; Fernando Dimeo; Andreas Heinz; Torsten Wüstenberg; Andreas Ströhle
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  45     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-22     Completed Date:  2013-09-26     Revised Date:  2014-03-25    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  583-91     Citation Subset:  IM; S    
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MeSH Terms
Affect / physiology*
Analysis of Variance
Basal Ganglia / physiology*
Exercise / physiology*,  psychology*
Exercise Test
Feedback, Psychological
Magnetic Resonance Imaging
Motivation / physiology
Neuropsychological Tests
Oxygen Consumption
Physical Fitness / physiology,  psychology
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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