TY - JOUR
T1 - Wildland Firefighting
T2 - Adverse Influence on Indices of Metabolic and Cardiovascular Health
AU - Coker, Robert H.
AU - Murphy, Carl J.
AU - Johannsen, Michelle
AU - Galvin, Grant
AU - Ruby, Brent C.
N1 - Publisher Copyright:
© 2019 American College of Occupational and Environmental Medicine. Unauthorized reproduction of this article is prohibited.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - Objective:The purpose of this study was to evaluate pre-and postseason measures of body composition, skeletal muscle, and blood parameters/liver lipid in wildland firefighters (WLFF) over the fire season.Methods:Alaskan WLFF (N = 27) crews were evaluated pre-and postwildfire season, which included 63 ± 10 operational days. Body composition, thigh muscle area, and liver lipid were quantified using dual-energy radiograph absorptiometry and magnetic resonance imaging, respectively. Blood metabolic and lipid panels were also collected and analyzed.Results:Total body, fat, and visceral fat mass increased from pre-to postseason (P < 0.05). Total cholesterol, LDL, and total globulin also increased (P < 0.05). There was a trend (P = 0.06) towards an increase in intrahepatic lipid.Conclusions:The observed maladaptive changes in adipose tissue, blood lipids, and hepatic function may reflect adaptations/consequences to occupational demands/conditions and warrant evaluation of appropriate countermeasures.
AB - Objective:The purpose of this study was to evaluate pre-and postseason measures of body composition, skeletal muscle, and blood parameters/liver lipid in wildland firefighters (WLFF) over the fire season.Methods:Alaskan WLFF (N = 27) crews were evaluated pre-and postwildfire season, which included 63 ± 10 operational days. Body composition, thigh muscle area, and liver lipid were quantified using dual-energy radiograph absorptiometry and magnetic resonance imaging, respectively. Blood metabolic and lipid panels were also collected and analyzed.Results:Total body, fat, and visceral fat mass increased from pre-to postseason (P < 0.05). Total cholesterol, LDL, and total globulin also increased (P < 0.05). There was a trend (P = 0.06) towards an increase in intrahepatic lipid.Conclusions:The observed maladaptive changes in adipose tissue, blood lipids, and hepatic function may reflect adaptations/consequences to occupational demands/conditions and warrant evaluation of appropriate countermeasures.
KW - body composition
KW - cholesterol
KW - intrahepatic lipid
KW - metabolic
KW - wildland firefighter
UR - http://www.scopus.com/inward/record.url?scp=85062695805&partnerID=8YFLogxK
U2 - 10.1097/JOM.0000000000001535
DO - 10.1097/JOM.0000000000001535
M3 - Article
C2 - 30640843
AN - SCOPUS:85062695805
SN - 1076-2752
VL - 61
SP - E91-E94
JO - Journal of Occupational and Environmental Medicine
JF - Journal of Occupational and Environmental Medicine
IS - 3
ER -