Study type: Medical/biological study (experimental study)

Calcium-ion movement and contractility in atrial strips of frog heart are not affected by low-frequency-modulated, 1 GHz electromagnetic radiation. med./bio.

Published in: Bioelectromagnetics 1993; 14 (6): 521-533

Aim of study (acc. to author)

To investigate the effects of AM or CW modulated 1 GHz exposure on calcium efflux and contractile force of isolated atrial muscle stripes of frog heart in vitro.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 1 GHz
Modulation type: CW
Exposure duration: 32 min
-
Exposure 2: 1 GHz
Modulation type: AM
Exposure duration: 32 min
-

Exposure 1

Main characteristics
Frequency 1 GHz
Type
Waveform
Exposure duration 32 min
Modulation
Modulation type CW
Exposure setup
Exposure source
  • striplin, 3 parallel brass plates, separated by 0,01m air gap
Additional info outer plates: 0.2x0.05 m 3mm thick (grounded); central plate: 0.184x0.032m 1.5mm thick (connected to input line and load via miniature caoxial comnnectors); sweep generator + 10W PA
Parameters

No parameters are specified for this exposure.

Exposure 2

Main characteristics
Frequency 1 GHz
Type
Waveform
Exposure duration 32 min
Modulation
Modulation type AM
Modulation frequency 500 mHz–16 Hz
Modulation depth 90 %
Additional info

0.5 Hz or 16 Hz

Exposure setup
Exposure source
  • striplin, 3 parallel brass plates, separated by 0,01m air gap
Additional info outer plates: 0.2x0.05 m 3mm thick (grounded); central plate: 0.184x0.032m 1.5mm thick (connected to input line and load via miniature caoxial comnnectors); sweep generator + 10W PA
Parameters

No parameters are specified for this exposure.

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • during exposure

Main outcome of study (acc. to author)

Neither contractile force nor calcium efflux in isolated muscle stripes of the frog heart were affected by any of the tested exposure characteristics.

Study character:

Study funded by

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