Sudden cardiac events are responsible for 40-50% of line-of-duty firefighter fatalities, yet the exact cause of these events is unknown. Likely, combinations of thermal, physical, and mental factors impair cardiovascular function and trigger such events. Therefore, the purpose of this study was to examine the impact of firefighting activities on vascular function. Sixty-nine young (28 ± 1 years) male firefighters underwent 3 hours of firefighting activities. Carotid, aortic, and brachial blood pressures (BP), heart rate (HR), augmentation index (AIx), wave reflection timing (TR), aortic pulse wave velocity (PWV), forearm blood flow (FBF), and forearm reactive hyperemia (RH) were measured before and after firefighting activities. Paired samples t-tests revealed significant (p < 0.05) increases in aortic diastolic BP, HR, AIx, PWV, RH, and FBF, and significant decreases in brachial and aortic pulse pressure and TR following firefighting activities. In conclusion, these results suggest that 3 hours of firefighting activities increase both arterial stiffness and vasodilation.
Article
Acute effects of firefighting on arterial stiffness and blood flow
All Scholarly Works
Document Type
Article, Peer-reviewed
Publication Date
4-1-2011
Abstract
Publication ISSN
1069-6563
Citation Information
Fahs CA, Huimin Yan, Ranadive S, Rossow LM, Agiovlasitis S, Echols G, Smith D, Horn GP, Rowland T, Lane A, Fernhall B. Acute effects of firefighting on arterial stiffness and blood flow Vasc Med 2011 Apr;16(2):113-8.