Related Experiment Video
Updated: Jun 25, 2025

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
Published on: February 12, 2021
Structural and functional cardiac parameters across occupations: a cross-sectional study in differing work
Roman Leischik1, Peter Foshag2, Chayakrit Krittanawong3
1Department of Cardiology, Faculty of Health, School of Medicine, University Witten/Herdecke, 58455, Witten, Germany. prof.leischik@kardiologie.nrw.
Occupational differences in cardiac structure and function were observed, with firefighters showing better diastolic function and police officers having higher left ventricular mass. Office workers exhibited the most significant septal hypertrophy and concentric remodeling.
Area of Science:
- Cardiology
- Occupational Health
- Echocardiography
Background:
- Previous research indicates variations in cardiovascular risk indicators across professions.
- Limited studies have utilized echocardiography to assess cardiac structure and function in specific occupational groups.
- Understanding these differences is crucial for targeted cardiovascular health strategies.
Purpose of the Study:
- To evaluate and compare cardiac structural and functional parameters in firefighters (FFs), police officers (POs), and office workers (OWs).
- To identify occupational-specific adaptations or risks related to cardiac health.
Main Methods:
- Prospective study involving 197 male participants (97 FFs, 54 POs, 46 OWs) from Germany.
- 2D and Doppler echocardiography performed under resting conditions.
- Assessment of structural (diastolic/systolic dimensions, hypertrophy) and functional (diastolic/systolic function, strain) cardiac parameters.
Main Results:
- All groups showed a tendency towards septal hypertrophy; office workers had the largest interventricular septum diameter.
- Police officers exhibited higher left ventricular mass and cavity diameters compared to firefighters and office workers.
- Firefighters demonstrated significantly better diastolic function (higher E/A and E/E' ratios) and strain parameters compared to police officers.
Conclusions:
- Significant differences in cardiac structure and function exist among firefighters, police officers, and office workers.
- Concentric remodeling was prevalent across all groups, with higher rates in office workers.
- Further prospective research is needed to elucidate the long-term cardiovascular implications of these occupational differences.
Related Concept Videos
Pathophysiology of Cardiac Performance
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Structure of Cardiac Muscles
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...

