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Introduction. The wide prevalence of cardiovascular diseases and their close connection with obesity, especially abdominal, makes the question of the relationship of these disorders with the respiratory system highly relevant to the coal industry. Their working conditions are closely related to the harmful effects on production factors. The study aimed to study the main cardiorespiratory parameters in coal industry workers with abdominal obesity. Materials and methods. We explored 369 men, including 225 employees of coal mines and 114 workers of open-pit coal mining enterprises in the South of Kuzbass, aged from 40 to 55 years (the average age of miners - 46.2±0.36 years, workers of open-pit mines - 46.7±0.36 years, p=0.344). Scientists conducted a study of external respiration function on an analyzer of the pneumotachometric type "Spiro-Spectrum." We used the ultrasound system "Vivid E9", manufactured by General Electric, to define echocardiographic parameters. Results. The percentage of abdominal obesity among the coal mining industry employees in the south of Kuzbass was relatively high (more than 50%). At the same time, we detected arterial hypertension much more often. Scientists have found that the average values of the lungs' vital capacity and the volume of forced exhalation for the first second have decreased in both groups in the presence of abdominal obesity. Moreover, we found a pronounced deviation among the miners. Researchers associate the values of the leading echocardiographic indicators with the presence of visceral obesity. We identified high values of systolic pressure in the pulmonary artery and characteristic signs of diastolic myocardial dysfunction in the examined patients. The researchers also identified the most pronounced indices of right and left atrial volumes in miners. In underground workers, the data of correlation analysis indirectly indicate that an increase in waist circumference is not the main factor affecting the reduction in their left ventricular longitudinal deformation. But we can't say this for onshore coal mining workers, who have a moderate connection. Conclusions. Abdominal obesity harms the respiratory system of coal industry workers, more pronounced in miners. Visceral obesity is significantly associated with dysfunction of the right and left parts of the heart, both in miners and in coal mine workers.
Introduction. The wide prevalence of cardiovascular diseases and their close connection with obesity, especially abdominal, makes the question of the relationship of these disorders with the respiratory system highly relevant to the coal industry. Their working conditions are closely related to the harmful effects on production factors. The study aimed to study the main cardiorespiratory parameters in coal industry workers with abdominal obesity. Materials and methods. We explored 369 men, including 225 employees of coal mines and 114 workers of open-pit coal mining enterprises in the South of Kuzbass, aged from 40 to 55 years (the average age of miners - 46.2±0.36 years, workers of open-pit mines - 46.7±0.36 years, p=0.344). Scientists conducted a study of external respiration function on an analyzer of the pneumotachometric type "Spiro-Spectrum." We used the ultrasound system "Vivid E9", manufactured by General Electric, to define echocardiographic parameters. Results. The percentage of abdominal obesity among the coal mining industry employees in the south of Kuzbass was relatively high (more than 50%). At the same time, we detected arterial hypertension much more often. Scientists have found that the average values of the lungs' vital capacity and the volume of forced exhalation for the first second have decreased in both groups in the presence of abdominal obesity. Moreover, we found a pronounced deviation among the miners. Researchers associate the values of the leading echocardiographic indicators with the presence of visceral obesity. We identified high values of systolic pressure in the pulmonary artery and characteristic signs of diastolic myocardial dysfunction in the examined patients. The researchers also identified the most pronounced indices of right and left atrial volumes in miners. In underground workers, the data of correlation analysis indirectly indicate that an increase in waist circumference is not the main factor affecting the reduction in their left ventricular longitudinal deformation. But we can't say this for onshore coal mining workers, who have a moderate connection. Conclusions. Abdominal obesity harms the respiratory system of coal industry workers, more pronounced in miners. Visceral obesity is significantly associated with dysfunction of the right and left parts of the heart, both in miners and in coal mine workers.
Introduction. The functional state and adaptive potential in workers employed at mining enterprises in the Arctic territories are influenced both harmful environmental factors and specific climatic conditions, age and work experience in contact with harmful working conditions. Assessing the impact of work experience on the health in employees to reduce occupational risks and prospects for preserving and strengthening the health of workers at mining enterprises remains an extremely relevant and timely task. Materials and methods. A cross-sectional study of workers was based on a mining and processing plant for the extraction of loparite ore in the Murmansk region. Two hundred one male employee participated in the study. Cardiohemodynamic and somatometric indices were evaluated, on the basis of which integrative indices for assessing functional changes were calculated. The subjects were ranked into groups by work time and age. Results. The analysis of somatometric indicеs, depending on work experience, revealed significant intergroup differences in body mass index, index of physical changes, blood pressure and heart rate. The analysis of heart rate variability showed that with an increase in work experience, there is a unidirectional, negative change in time indices and the wave structure of the heart rhythm towards suppressing the activity of the autonomous regulation circuit with an increased contribution of sympathetic influences on the heart rate. Limitations. Difficult access to medical information and employees’ fears of participating in the study due to fear of dismissal for health reasons. Conclusion. With an increase in work experience, negative changes in the functional state of the body of mining workers in the Arctic zone of the Russian Federation are comprehensively manifested (overweight, an increase in the index of functional changes, an increase in blood pressure). The increased influence of sympathetic influences on the heart rhythm, with the suppression of self-regulation processes, is reflected in the tension of regulatory mechanisms leading to a decrease in adaptive potential and the development of a premorbid state.
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