TY - JOUR
T1 - Improving Body Composition May Reduce the Immune and Inflammatory Responses of Firefighters Working in the Heat
AU - Walker, Anthony
AU - Beatty, Heather E.Wright
AU - Zanetti, Sara
AU - Rattray, Ben
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Objective: We hypothesized that different body composition and fitness of firefighters would affect immune and inflammatory activity after working in the heat. Methods: Forty-two firefighters worked in the heat (100 ± 5 °C). Changes in leukocytes, platelets, tumor necrosis factor (TNF-α), and C-reactive protein (CRP) were analyzed based on body composition (DXA) and aerobic fitness (VO 2max). Results: Higher baseline leukocytes were observed for high body fat (P = 0.002) and low lean mass (P = 0.023) resulting in the highest peak values. Additionally, significantly lower values for TNF-α were observed with high lean mass at all time points. Platelets were unaffected by fitness or body composition. Furthermore, body mass index (BMI) and VO 2max played no role. Conclusions: Minimizing body fat and increasing lean mass may reduce immune and inflammatory activity of firefighters in the heat.
AB - Objective: We hypothesized that different body composition and fitness of firefighters would affect immune and inflammatory activity after working in the heat. Methods: Forty-two firefighters worked in the heat (100 ± 5 °C). Changes in leukocytes, platelets, tumor necrosis factor (TNF-α), and C-reactive protein (CRP) were analyzed based on body composition (DXA) and aerobic fitness (VO 2max). Results: Higher baseline leukocytes were observed for high body fat (P = 0.002) and low lean mass (P = 0.023) resulting in the highest peak values. Additionally, significantly lower values for TNF-α were observed with high lean mass at all time points. Platelets were unaffected by fitness or body composition. Furthermore, body mass index (BMI) and VO 2max played no role. Conclusions: Minimizing body fat and increasing lean mass may reduce immune and inflammatory activity of firefighters in the heat.
UR - http://www.scopus.com/inward/record.url?scp=85017523653&partnerID=8YFLogxK
U2 - 10.1097/JOM.0000000000000980
DO - 10.1097/JOM.0000000000000980
M3 - Article
AN - SCOPUS:85017523653
SN - 1076-2752
VL - 59
SP - 377
EP - 383
JO - Journal of Occupational and Environmental Medicine
JF - Journal of Occupational and Environmental Medicine
IS - 4
ER -
