Author(s):
Shae Gurney, Katherine Christison, Cassie M. Williamson-Reisdorph, Joseph A. Sol, Tiffany S. Quindry, John C. Quindry, Charles L. Dumke
Year Published:

Cataloging Information

Topic(s):
Human Dimensions of Fire Management
Human Factors of Firefighter Safety
Wildland Firefighter Health

Record updated: November 29, 2022
NRFSN number: 24597

Objective:To identify physiologic stressors related to cardiovascular disease via changes in metabolic, inflammatory, and oxidative stress biomarkers during 2 weeks of preseason training in wildland firefighters (WLFFs).

Methods:Participants were recruited from a local hotshot crew and monitored during preseason training. Fitness was assessed via the Bureau of Land Management fitness challenge. Venipuncture blood was collected on days 1, 4, 8, and 11 and analyzed for changes in a lipid and glucose panel, C-reactive protein, and oxidative stress markers 8-isoprostane (8ISO), 3-nitrotyrosine (3NT), lipid hydroperoxides (LOOH), and protein carbonyls.

Results: The high physical demands of training resulted in significant (P < 0.05) reductions in total cholesterol, glucose, and hemoglobin A1c. A main effect for time was observed in 8ISO, 3NT, and LOOH.

Conclusions: Alterations in metabolic and oxidative stress markers suggest an acute, high-intensity physical stress during WLFF preseason training.

Citation

Gurney SC, Christison KS, Williamson-Reisdorph CM, Sol JA, Quindry TS, Quindry JC, and Dumke CL. 2021. Journal of Occupational and Environmental Medicine 63(7): 594-599.
doi: 10.1097/JOM.0000000000002191

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