Document Detail


The effect of a change in sleep-wakefulness timing, bright light and physical exercise interventions on 24-hour patterns of performance, mood and body temperature.
MedLine Citation:
PMID:  14564893     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Experiments consisting of baseline, bright light and physical exercise studies were carried out to compare the effect of a 9-hour delay in sleep-wakefulness timing, and the effects of bright light and physical exercise interventions on 24-hour patterns of performance, mood and body temperature were examined. Each study comprised a 24-hour constant routine at the beginning followed by 3 night shifts and 24-hour constant routine at the end. Performance on tasks differing in cognitive load, mood and body temperature was measured during each constant routine and the interventions were applied during the night shifts. The 24-hour pattern of alertness and performance on the tasks with low cognitive load in post-treatment conditions followed the change in sleep-wakefulness timing while more cognitively loaded tasks tended to show a reverse trend when compared to pre-treatment conditions. There was a phase delay around 4 hours in circadian rhythms of body temperature in post-treatment conditions.
Authors:
I Iskra-Golec; M Fafrowicz; T Marek; G Costa; S Folkard; J Foret; M Kundi; L Smith
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of human ergology     Volume:  30     ISSN:  0300-8134     ISO Abbreviation:  J Hum Ergol (Tokyo)     Publication Date:  2001 Dec 
Date Detail:
Created Date:  2003-10-20     Completed Date:  2003-11-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0364267     Medline TA:  J Hum Ergol (Tokyo)     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  261-6     Citation Subset:  IM    
Affiliation:
Jagiellonian University, Kraków, Poland.
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MeSH Terms
Descriptor/Qualifier:
Adult
Affect / physiology*
Attention / physiology
Body Temperature / physiology*
Circadian Rhythm / physiology*
Exercise / physiology*
Female
Humans
Lighting*
Male
Monitoring, Ambulatory
Neuropsychological Tests
Problem Solving / physiology
Reaction Time / physiology
Sleep / physiology*
Task Performance and Analysis
Wakefulness / physiology*
Work Schedule Tolerance / physiology*

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


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