Document Detail

Effects of acute exercise on visual reaction time.
MedLine Citation:
PMID:  18600610     Owner:  NLM     Status:  MEDLINE    
We examined the effects of acute exercise on reaction time to visual stimuli presented in the central portion and periphery of the visual field. Twelve participants performed reaction time tasks at rest and during cycling at 65 % peak oxygen uptake in two visual conditions. We used circular black-and-white checkerboard patterns as visual stimuli. The participants were asked to respond as quickly as possible to pattern reversal of the visual stimulus by releasing a response button. Reaction time was fractionated into Premotor time and Motor time. Premotor time in the peripheral condition significantly increased (p < 0.025) during exercise (mean +/- SE; 195.9 +/- 7.9 ms) from that at rest (183.7 +/- 6.8 ms). Premotor time in the central condition did not differ between at rest (185.3 +/- 7.6 ms) and during exercise (188.4 +/- 6.6 ms). These data suggest that the ability to respond to visual stimuli presented in the periphery of the visual field is vulnerable to moderate to severe exercise, as compared with the ability to respond to visual stimuli presented in the central portion of the visual field. An exercise-induced increase in arousal level and a consequent narrowing of attentional focus would explain the present results.
S Ando; M Kokubu; T Kimura; T Moritani; M Araki
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2008-07-03
Journal Detail:
Title:  International journal of sports medicine     Volume:  29     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-10-31     Completed Date:  2009-03-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  994-8     Citation Subset:  IM    
Graduate School of Sport Science, Osaka University of Health and Sport Sciences, Osaka, Japan.
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MeSH Terms
Analysis of Variance
Attention / physiology*
Bicycling / physiology,  psychology*
Exercise / physiology,  psychology*
Motor Activity
Oxygen Consumption
Psychomotor Performance*
Reaction Time / physiology*
Task Performance and Analysis
Time Factors

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