Document Detail


Acute effects of firefighting on cardiac performance.
MedLine Citation:
PMID:  21660460     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study examined standard echocardiographic measures of cardiac size and performance in response to a 3-h firefighting training exercise. Forty experienced male personnel completed a standardized 3 h live firefighting exercise. Before and after the firefighting activities, participants were weighed, height, heart rate, blood pressure and blood samples were obtained, and echocardiographic measurements were made. Firefighting produced significant decreases in left ventricular diastolic dimension, stroke volume, fractional shortening, and mitral E velocity, tachycardia, a rise in core temperature, and a reduction in calculated plasma volume. On tissue Doppler imaging, there were no changes in systolic contractile function, but a decreased lateral wall diastolic velocity was observed. These findings show that 3 h of live firefighting produced cardiac changes consistent with cardiac fatigue, coupled with a decrease in systemic arterial compliance. These data show that live firefighting produces significant cardiovascular changes and future work is needed to evaluate if these changes are related to the increase in cardiovascular risk during live firefighting.
Authors:
Bo Fernhall; Christopher A Fahs; Gavin Horn; Thomas Rowland; Denise Smith
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-10
Journal Detail:
Title:  European journal of applied physiology     Volume:  -     ISSN:  1439-6327     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, 227 Freer Hall MC-052, 906 South Goodwin Avenue, Urbana, IL, 61801, USA, Fernhall@illinois.edu.
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