Related Experiment Video
Updated: Oct 14, 2025

Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
Published on: August 25, 2017
Related factors for preserving firefighter's pulmonary function.
Seonggyu Kim1, Ye-Eun Jeon1, Hyeseung Ryu1
1Department of Occupational and Environment Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea.
Firefighter lung function declines with age and higher body fat. Increasing height and skeletal muscle mass can help maintain lung capacity, suggesting targeted fitness and weight management strategies.
Area of Science:
- Occupational Health
- Pulmonary Medicine
- Exercise Physiology
Background:
- Firefighters face respiratory hazards requiring protective management.
- Lung function deterioration is a concern in this population.
- Identifying factors influencing lung health is crucial for intervention.
Purpose of the Study:
- To compare factors affecting firefighters' lung function.
- To identify management strategies to mitigate lung function decline.
Main Methods:
- Cross-sectional study of 1,108 male firefighters.
- Collected data on lifestyle, medical history, body composition (including height-adjusted skeletal muscle index - hSMI), and lung function (FEV1, FVC, FEV1/FVC, PEF).
- Utilized univariate and multivariate regression analyses to identify influencing factors.
Main Results:
- Lung function (FEV1, FVC) negatively correlated with age, body fat percentage, and duty year.
- Positive correlations found between lung function and height and hSMI.
- Exercise frequency (>3 times/week) reduced the impact of work history on FEV1 and body fat on FEV1/FVC.
Conclusions:
- Reducing body fat percentage is recommended for maintaining firefighter lung function.
- Increasing skeletal muscle mass is advised to support lung health.
- Targeted management strategies focusing on body composition can benefit firefighters.
Related Concept Videos
Factors Affecting Pulmonary Ventilation
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Pulmonary Function Tests
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
Chronic Obstructive Pulmonary Disease-I: Introduction
Pressure Relationships in Thoracic Cavity
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs...
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...

