Time Restricted Feeding Reduces Inflammation and Cortisol Response to a Firegrounds Test in Professional Firefighters. Issue 5 (May 2021)

• Record Type: Journal Article
• Authors: McAllister, Matthew J.; Gonzalez, Andrew E.; Waldman, Hunter S.
• Is Part Of: Journal of occupational and environmental medicine. Volume 63:Issue 5(2021)
• Publication Date: 2021-05
• Subjects: cytokines -- fasting -- fire -- metabolic -- nutrition -- saliva; Medicine, Industrial -- Periodicals; Environmental health -- Periodicals; Occupational Medicine -- Periodicals; Environmental Medicine -- Periodicals; Environmental health; Medicine, Industrial; Periodicals; Electronic journals; 616.9803
• DOI: 10.1097/JOM.0000000000002169
• Languages: English
• ISSNs: 1076-2752

Abstract

Abstract : Objective: Firefighters are at a heightened risk for developing cardiovascular disease. The purpose of this study was to determine if time restricted feeding (TRF) can improve the stress/inflammatory response to a simulated firegrounds test (FGT) in professional firefighters. Methods: Thirteen firefighters participated in an 8-week TRF intervention (14:10 [fasting:feeding]) protocol and completed a FGT before and after the intervention. Blood lactate, heart rate, salivary C-reactive protein (CRP), interleukin-6 (IL-6), interleukin 1-β (IL-1β), and cortisol were measured pre and post FGT. Results: Following TRF, the salivary cortisol response to the FGT was significantly ( P < 0.05) reduced. Salivary IL-6 and IL-1β were also significantly lower, and CRP was higher following the intervention. Conclusions: These findings demonstrate lower inflammation and reduced stress response to FGT following TRF and may suggest implications in terms of cardiometabolic benefits for firefighters.