Zeitschrift fur die gesamte Hygiene und ihre GrenzgebieteMay 1, 1989

How Work Stress Affects Blood Pressure in Ore Miners

Circadian Biology Weekly Brief ↗PubMed ↗

Updated Apr 1, 2026

Abstract

The incidence of hypertension among 200 miners was 0.90% over a five-year period.

Systolic blood pressure during an underground mining shift was significantly lower than before the shift and after its completion.
Diastolic blood pressure showed a slight increase during the shift, but this change was not statistically significant.
No significant changes in blood pressure levels were observed despite varying physical loads from different mining technologies.
Working conditions did not appear to influence the incidence of hypertension or blood pressure measurements during the miner's shift.

Simplified

It was tried to analyse the influence of occupational load on the blood pressure reaction of miners. 200 miners at the age of 25-45 years with a large number of simultaneously affecting loadings at the place of work were examined with regard to the incidence of hypertension within a period of 5 years. The incidence of hypertension was 0.90%. To investigate the blood pressure reactions during an eight-hour shift we chose 2 technologies of mining differing concerning the loading factors, especially the intensity of physical load. In each case 5 miners of the technologies propulsion and mining were examined before the descent, during the eight-hour shift and after having finished the shift and the blood pressure was taken paying attention to standard conditions. The systolic blood pressure taken during an underground mining shift was significantly lower than the systolic blood pressure before the descent and after the shift, while a slight ascent of the diastolic blood pressure was insignificant. In spite of the different physical load we found no signs for a relevant displacement of the blood pressure level. A influence of working on the blood pressure reaction was found neither in the incidence of hypertension nor in the measurements of the blood pressure during an eight-hour miner's shift.

How Work Stress Affects Blood Pressure in Ore Miners

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