Document Detail

The effect of extended wake on postural control in young adults.
MedLine Citation:
PMID:  22821076     Owner:  NLM     Status:  MEDLINE    
The sleep-wake cycle is a major determinant of locomotor activity in humans, and the neural and physiological processes necessary for optimum postural control may be impaired by an extension of the wake period into habitual sleep time. There is growing evidence for such a contribution from sleep-related factors, but great inconsistency in the methods used to assess this contribution, particularly in control for circadian phase position. Postural control was assessed at hourly intervals across 14 h of extended wake in nine young adult participants. Force plate parameters of medio-lateral and anterior-posterior sway, centre of pressure (CoP) trace length, area, and velocity were assessed with eyes open and eyes closed over 3-min periods. A standard measure of psychomotor vigilance was assessed concurrently under constant routine conditions. After controlling for individual differences in circadian phase position, a significant effect of extended wake was found for anterior-posterior sway and for psychomotor vigilance. These data suggest that extended wake may increase the risk of a fall or other consequences of impaired postural control.
Simon S Smith; Tiffany Cheng; Graham K Kerr
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Publication Detail:
Type:  Journal Article     Date:  2012-07-22
Journal Detail:
Title:  Experimental brain research     Volume:  221     ISSN:  1432-1106     ISO Abbreviation:  Exp Brain Res     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-08-06     Completed Date:  2013-06-06     Revised Date:  2013-12-13    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  329-35     Citation Subset:  IM    
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MeSH Terms
Circadian Rhythm / physiology*
Postural Balance / physiology*
Psychomotor Performance / physiology*
Sleep Stages / physiology*
Wakefulness / physiology*
Young Adult

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