Study type: Medical/biological study (experimental study)

A preliminary study of oscillating electromagnetic field effects on human spermatozoon motility. med./bio.

Published in: Bioelectromagnetics 2007; 28 (1): 72-75

Aim of study (acc. to author)

The aim of this study was to investigate the effects of 50 Hz electromagnetic fields on human sperm motility.

Background/further details

Semen samples were obtained from healthy donors with ordinary sperm parameters according to WHO criteria after three days of sexual abstinence. Each experiment was repeated three times. Exposure to both sinusoidal magnetic field and two-phase square wave was performed.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 50 Hz
Exposure duration: continuous for 3 h
Exposure 2: 50 Hz
Exposure duration: continuous for 3 h

Exposure 1

Main characteristics
Frequency 50 Hz
Type
Waveform
  • rectangular
Exposure duration continuous for 3 h
Exposure setup
Exposure source
Setup solenoid 200 mm long with a diameter of 160 mm and 511 turns; samples placed in the center of the solenoid
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 5 mT - measured - -
magnetic flux density 2.5 mT - measured - -

Exposure 2

Main characteristics
Frequency 50 Hz
Type
Waveform
Exposure duration continuous for 3 h
Exposure setup
Exposure source
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 5 mT - 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)

Significant increases in sperm motility were observed when spermatozoa were exposed to square wave (5 mT). This effect persisted for 21 hours after the end of the irradiation. By contrast, a 5 mT sinusoidal wave and a 2.5 mT square wave exposure did not produce any significant effect on sperm motility.
These data indicate that extremely low frequency electromagnetic field exposure can improve spermatozoa motility and that this effect depends on both wave form and applied magnetic field.

Study character:

Study funded by

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