Document Detail

Between-minute stability in habituated human skill with modestly lowered blood glucose.
MedLine Citation:
PMID:  7163389     Owner:  NLM     Status:  MEDLINE    
Modestly lowered blood glucose (G) occurs with fasting and exercise, increasing variability in forces applied during repetitions of an habituated cycling task. Its effect was studied on stability of the movement cycle pattern of forces from minute to minute. Forces applied at 26 positions in the movement cycle were correlated with each other over 20 one minute samples. Six young men worked (a) 3 hr post-prandial, or as (a) but terminated by feeding 100 g (G) slurry (b) immediately before or (c) 30 minutes before exercise. For each sample, data were averaged over subjects, feet, exercise loads (100 W; 150 W) and 40 movement cycles. Over all conditions together, the movement cycle forces were strongly patterned, implying control by pre-set neural programs. Evoked depressions of blood G below fasting coincided with significant reduction in this patterning. It is suggested that in neural control circuits with modestly depressed blood G, there may be increased sensitivity to feedback over movement cycles.
J D Brooke; A Chapman; L Fischer; P Rosenrot
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Physiology & behavior     Volume:  29     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  1982 Dec 
Date Detail:
Created Date:  1983-04-15     Completed Date:  1983-04-15     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1111-5     Citation Subset:  IM    
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MeSH Terms
Blood Glucose / metabolism*
Habituation, Psychophysiologic / physiology*
Motor Skills / physiology*
Physical Exertion
Reg. No./Substance:
0/Blood Glucose

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

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