Study type: Medical/biological study (experimental study)

A very low level of magnetic field exposure does not affect a participant's mental fatigue and stress as much as VDT work med./bio.

By: Ishihara I, Ikushima M, Horikawa J, Haraga M, Kawamoto R, Murase C, Tashiro T, Tsutsui Y, Kawashima M, Kasai H, Yamazaki S, Majima Y, Kurokawa Y
Published in: J UOEH 2005; 27 (1): 25-40
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Aim of study (acc. to author)

To study whether exposure to the magnetic field during visual display terminal work affects mental fatigue or induces stress related to psycho-physiological changes in workers.

Background/further details

37 students (36 female, one male) participated.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 50–60 Hz
Exposure duration: continuous for 90 min

Exposure 1

Main characteristics
Frequency 50–60 Hz
Type
Exposure duration continuous for 90 min
Exposure setup
Exposure source
Setup participants sat in front of a LCD (liquid crystal dispaly) monitor which was placed in front of the CRT with an opaque screen separating them; both the participant and the experimenter did not know if the CRT was on
Parameters
Measurand Value Type Method Mass Remarks
electric field strength 9.41 V/m mean measured - -
magnetic flux density 0.06 µT mean measured - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The data did not detect any adverse health effects of magnetic field exposure on subjects but suggested that visual display terminal work itself affects mental fatigue and psycho-physiological status.

Study character:

Study funded by

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