Study type: Medical/biological study (observational study)

The Effect of Extremely Low-Frequency Electromagnetic Fields on the Prevalence of Musculoskeletal Disorders and the Role of Oxidative Stress. med./bio.

Published in: Bioelectromagnetics 2019; 40 (5): 354-360

Aim of study (acc. to author)

The direct and indirect effects of chronic occupational exposure to extremely low frequency electric fields and magnetic fields on musculoskeletal disorders in workers of a power plant should be investigated.

Background/further details

The indirect effects should be investigated by oxidative stress parameters.
A total of 152 workers from a power plant took part in the study. The personal occupational exposure of each study participant was calculated by measuring the electric and magnetic fields at different workplaces in the power plant and the amount of time the workers spent at these places.

Endpoint

Exposure

Exposure Parameters
Exposure 1:
Exposure duration: at least 2 years work experience at a power plant (participation requirement)

Exposure 1

Main characteristics
Frequency
Type
Exposure duration at least 2 years work experience at a power plant (participation requirement)
Exposure setup
Exposure source
Setup workers were asked to briefly describe their workstations and the amount of time that they spent at them; measurements were done at these spots, and the 8 h time‐weighted average of exposure to magnetic fields and electric fields was calculated
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 4.09 µT average over time measured and calculated - ± 4.08 µT
electric field strength 22.99 V/m average over time measured and calculated - ± 16.27 V/m

Reference articles

  • Cam ST et al. (2011): Occupational exposure to magnetic fields from transformer stations and electric enclosures in Turkey.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

The results showed that occupational exposure to extremely low frequency electric fields and magnetic fields are not directly related to musculoskeletal disorders, although increased levels of oxidative stress may cause musculoskeletal disorders. However, the effect of occupational exposure to electric fields and magnetic fields on oxidative stress parameters was not investigated.

Study character:

Study funded by

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