Document Detail

Information processing and concentration as a function of fitness level and exercise-induced activation to exhaustion.
MedLine Citation:
PMID:  7624186     Owner:  NLM     Status:  MEDLINE    
To examine the effects of increasing amounts of exercise on attention and speed of information processing 20 paid male subjects were separated into groups of high and low fitness according to their VO2max values. The experiment involved an attentional task (Random Number Generation) that was given after every 10 min. of cycling at work-load resistances calculated as 40%, 50%, 60%, 70%, and 80% of individual VO2max values. An eight-choice reaction time-movement time task was given before and after exercise as well as after a 15-min. recovery period. Individuals were tested within 10 min. after exercise cessation (exhaustion) for concentration and within 15 min. for choice reaction time and movement time to assess whether fitness differentially interacted with these variables. Split-plot factorial analyses of variance suggested that the CNS appeared capable of maintaining performance after 50 min. of exhaustive exercise compared to values obtained at the preexercise condition. A 15-min. recovery period significantly impaired MT but relatively highly fit individuals did not appear to perform the choice RT and concentration tasks better than individuals low in fitness.
A K Travlos; D Q Marisi
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  80     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  1995 Feb 
Date Detail:
Created Date:  1995-08-31     Completed Date:  1995-08-31     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  15-26     Citation Subset:  IM    
Department of Physical Education and Sport Studies, University of Alberta.
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MeSH Terms
Arousal / physiology
Mental Processes*
Psychomotor Performance
Reaction Time

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

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