Study type: Medical/biological study (experimental study)

The cardiac effects of a mobile phone positioned closest to the heart med./bio.

Published in: Anadolu Kardiyol Derg 2009; 9 (5): 380-384

Aim of study (acc. to author)

To study the effect of mobile phone on human cardiac electrical activity while the mobile phone is located on the precordium.

Background/further details

A total of 24 healthy volunteers were included. In a first step, electrocardiogram (ECG) and blood pressure recordings of the subjects were performed without mobile phone (baseline). Then, the mobile phone was located on the chest and the ECG and blood pressure were recorded while the mobile phone was off, on, and ringing (silent mode). In a second step, heart rhythm and blood pressure were recorded for 30 minutes without mobile phone, and when the mobile phone was "on" at the precordial location.



Exposure Parameters
Exposure 1: 900–1,800 MHz

Exposure 1

Main characteristics
Frequency 900–1,800 MHz
Exposure setup
Exposure source
Setup phone placed in a pocket suspended from the neck, placed in the left parasternal area; phone set in silent mode
Measurand Value Type Method Mass Remarks
SAR 2 W/kg - - - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

The mobile phone had no effect on hemodynamic and cardiac electrical activity parameters when it was positioned on the chest in immediate proximity to the heart, and it did not cause cardiac autonomic dysfunction (i.e. heart rate variability) in healthy adult subjects.

Study character:

Study funded by

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