TY - JOUR
T1 - Cardiorespiratory Fitness Is Inversely Associated With Aortic Arterial Stiffness in Firefighters
AU - Nagel, Tom R.
AU - Melton, Bridget F.
AU - Keeler, Jason M.
AU - Cross, Brett L.
AU - Blumenburg, Wesley T.
AU - Flatt, Andrew A.
AU - Stoner, Lee
AU - Grosicki, Gregory J.
N1 - Copyright © 2022 American College of Occupational and Environmental Medicine.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - Objectives The aim of this study was to determine whether cardiorespiratory fitness (CRF), expressed as VO2max (mL/kg/min), is associated with resting AS (carotid-femoral pulse wave velocity [cf-PWV]) and the AS response to simulated fire suppression activities in firefighters. Methods In firefighters (n = 20, 34 ± 8 years), AS was determined using cf-PWV (m/s) before and after a fire simulation exercise. VO2max was determined using a standard treadmill protocol. Linear regression models, adjusted for body fat percentage, are reported as unstandardized (b) and standardized (β) betas (effect sizes). Results H1: there was a moderate (ie, β = 0.5-0.8), inverse association between cf-PWV and VO2max (b = -0.80; 95% confidence interval [CI], -0.14 to -0.02; β = 0.71). H2: there was a moderate, positive association between Δcf-PWV and VO2max (b = 0.05; 95% CI, 0.00-0.10; β = 0.62). Conclusions These findings indicate that CRF may protect against arterial stiffening in firefighters.
AB - Objectives The aim of this study was to determine whether cardiorespiratory fitness (CRF), expressed as VO2max (mL/kg/min), is associated with resting AS (carotid-femoral pulse wave velocity [cf-PWV]) and the AS response to simulated fire suppression activities in firefighters. Methods In firefighters (n = 20, 34 ± 8 years), AS was determined using cf-PWV (m/s) before and after a fire simulation exercise. VO2max was determined using a standard treadmill protocol. Linear regression models, adjusted for body fat percentage, are reported as unstandardized (b) and standardized (β) betas (effect sizes). Results H1: there was a moderate (ie, β = 0.5-0.8), inverse association between cf-PWV and VO2max (b = -0.80; 95% confidence interval [CI], -0.14 to -0.02; β = 0.71). H2: there was a moderate, positive association between Δcf-PWV and VO2max (b = 0.05; 95% CI, 0.00-0.10; β = 0.62). Conclusions These findings indicate that CRF may protect against arterial stiffening in firefighters.
KW - cardiovascular disease
KW - coronary heart disease
KW - exercise
KW - pulse wave velocity
KW - vascular
UR - https://www.scopus.com/pages/publications/85139535858
U2 - 10.1097/JOM.0000000000002657
DO - 10.1097/JOM.0000000000002657
M3 - Article
C2 - 35941741
AN - SCOPUS:85139535858
SN - 1076-2752
VL - 64
SP - E641-E646
JO - Journal of Occupational and Environmental Medicine
JF - Journal of Occupational and Environmental Medicine
IS - 10
ER -
