Document Detail


Stress Hormones and Vascular Function in Firefighters during Concurrent Challenges.
MedLine Citation:
PMID:  21382435     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The purpose of this study was to examine the effects of concurrent physical and mental challenge on stress hormones and indicators of vascularfunctionin firefighters. Twelve professional firefighters exercised at 60% VO(2max) while participating in a computerized Fire Strategies and Tactics Drill (FSTD-fire strategies condition [FSC]), and again at the same intensity without the mental challenge (EAC). No differencesin the amount of work performed between conditions existed, although the FSC resulted in greater perceptions of overall workload. Epinephrine and norepinephrine demonstrated significant interaction effects with elevated levels during the FSC. Cortisol responses were significantly elevated across time and for the FSC. Positive correlations were found between cortisol and interleukin-6, endothelin-1, and thromboxane-B(2), and a negative correlation between interleukin-6 and thromboxane-B(2). These results suggest that concurrent challenges results in exacerbated responses of stress hormones and suggests mechanisms that could contribute to the prevalence of cardiovascular events among firefighters.
Authors:
Heather E Webb; Ryan S Garten; David R McMinn; Jamie L Beckman; Gary H Kamimori; Edmund O Acevedo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-4
Journal Detail:
Title:  Biological psychology     Volume:  -     ISSN:  1873-6246     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375566     Medline TA:  Biol Psychol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier B.V.
Affiliation:
Mississippi State University, Mississippi State, Mississippi.
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