Cardiorespiratory associations during a load test in workers of dust-hazardous professions

Abstract

Introduction. The social significance of occupational dust pathology is due to its leading position in the structure of mortality from occupational diseases. Stress tests are an important stage in a comprehensive approach to assessing and predicting the health status of trained dust workers.

The aim of study was to study the relationship between exercise tolerance and the state of the cardiorespiratory system in employees of dust-hazardous professions based on the results of a 6-minute walking test (6MW).

Materials and methods. Using data from echocardiography, spirometry, bodyplethysmography (BPG), a 6MW test and simultaneous monitoring of blood oxygen saturation (SpO₂), 193 working dust professions (DP) (79 people), chronic obstructive pulmonary disease (COPD) (56 people) and patients without signs of respiratory pathology (58 people) were examined.

Results. The peculiarities of spirometry and BPG, traced the relationship of load test results with the results of functional studies of cardio-respiratory status.

Conclusions. It was found that SpO₂ in the dynamics of the 6mx test shows a different relationship with spirometry indicators, characterizing the main pathogenetic moments of the formation of respiratory failure.