Characterization of the Complex Load of Miners utilizing the Delta Increment in Heart Rate,Body Temperature and other Physiological Variables during Work

Abstract

It is generally accepted that the work of miners is a complex task. The physical work must be performed in artificial environment with multiple physical, ergonomical and psychosocial influences. This study aims at analyzing and defining the complex load and strain of physical workers in underground bauxite mines.

The results suggest that the absolute values of heart rate and body temperature, due to the large individual variations and other (environmental) factors, are not suitable for characterizing the physical workload or the physiological strain during physical work. We suggest the use of the increments above the lowest values occurring during the working shift.