Document Detail

Effects of stress on psychophysiological parameters of electricity distribution network controllers in Ukraine.
MedLine Citation:
PMID:  14564907     Owner:  NLM     Status:  MEDLINE    
The purpose was to reveal the effects of stress on the parameters of cognitive performance and cardiovascular system activities in controllers working 12-hour shifts. Sixteen controllers were studied, and altogether 384 subject observations were acquired. A 5-point scale was used to estimate the perceived level of stress experienced by the controllers. Increased heart rate and heart activity-related haemodynamic parameters were found with an increase in perceived stress. Decreases found in heart rate, circulatory minute volume, and Kerdo's vegetative index over the shift became less pronounced with increased stress. Better attention was found under the average level of stress that was found on the first day shift. An effect of stress on short-term memory was not revealed. As a whole, the most pronounced changes were found during the first day shift and less pronounced changes appeared during the first night shift. Effects of stress were not found in changes of the studied parameters during the second consecutive day or night shift. Thus, increased stress causes the activation of some psychophysiological functions (attention and cardiac activity) that are indispensable for high work efficiency under increased production demands. However, the necessary activation could not be maintained during the second consecutive 12-hour shifts, probably because of accumulated fatigue, and also night work. On the other hand, too high stress may lead to the excessive activation of cardiac activity and deterioration of attention.
N Bobko
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Publication Detail:
Type:  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:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0364267     Medline TA:  J Hum Ergol (Tokyo)     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  351-5     Citation Subset:  IM    
Institute for Occupational Health, Kiev, Ukraine.
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MeSH Terms
Arousal / physiology*
Attention / physiology
Autonomic Nervous System / physiology*
Cardiovascular System / innervation
Heart Rate / physiology
Hemodynamics / physiology*
Memory, Short-Term / physiology*
Middle Aged
Personnel Staffing and Scheduling*
Power Plants*
Risk Factors
Stress, Psychological / complications*
Work Schedule Tolerance / physiology*
Workload / psychology

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

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