Maximal Oxygen Uptake and Coronary Artery Calcium Scores in Firefighters.

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Journal of occupational and environmental medicine Pub Date : 2025-09-01 Epub Date: 2025-05-07 DOI:10.1097/JOM.0000000000003443

Mingyue Li, Jiali Han, Carolyn Muegge, Terrell Zollinger, Laura Y Zhou, Patrick Monahan, Hallie Jo Phillips, Jennifer Wessel, Vanessa Kleinschmidt, Steven Moffatt, Hongmei Nan

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Abstract

Objective: This study investigates the association between maximal oxygen uptake (VO 2 max) and coronary artery calcium (CAC) scores in Indiana firefighters across different age groups.

Methods: Using cross-sectional data, multivariable linear regression was conducted to examine the relationship between VO 2 max and CAC, stratified by age (<45 and ≥45 years), with adjustments for cardiovascular risk factors.

Results: Higher VO 2 max was significantly associated with lower CAC scores in firefighters aged ≥45 years (β = -7.30; 95% CI: -11.41, -3.18; P < 0.001). No association was detected in firefighters under 45 years. Differences may reflect unique occupational physical demands and age specific cardiovascular risk profiles.

Conclusions: Higher aerobic fitness is linked to reduced subclinical atherosclerosis in older firefighters, underscoring the importance of maintaining fitness to mitigate cardiovascular risks in this high risk group.

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消防员最大摄氧量和冠状动脉钙评分。

目的：研究印第安纳州不同年龄组消防员最大摄氧量（VO2 max）与冠状动脉钙（CAC）评分之间的关系。方法：采用横断面数据，进行多变量线性回归，检验VO2 max与CAC之间的关系，并按年龄分层。结果：≥45岁的消防员VO2 max越大，CAC评分越低(β = -7.30；95% ci: [-11.41, -3.18]；P < 0.001)。在45岁以下的消防员中未发现关联。差异可能反映了独特的职业身体需求和年龄特定的心血管风险概况。结论：较高的有氧适能与老年消防员亚临床动脉粥样硬化的减少有关，强调了在这一高危人群中保持健康以降低心血管风险的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of occupational and environmental medicine

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