20 healthy young subjects participated. They were rested in supine position at least for 15 minutes and heart rate variability parameters were recorded at baseline for five minutes. Afterwards, heart rate variability parameters were recorded at mobile phone "turned off mode", at "turned on mode", and at "calling mode" over 5 minutes periods for each stage.
Modulation type: pulsed
Exposure duration: three times 5 min (see add. information)
|Exposure duration||three times 5 min (see add. information)|
|Repetition frequency||217 Hz|
|Setup||test person lying on a bed in the test room|
|Additional info||first 5 min: phone turned off; fastened to the test person's belt on the right side second 5 min: phone turned on; touching the left pectoral skin of the test person third 5 min: phone called from another phone in 2 m distance; vibration mode and ringing of the phone turned off; phone in the same position as in the second trial|
No parameters are specified for this exposure.
Neither time domain nor frequency domain analysis of heart rate variability parameters were altered significantly during "off mode", "on mode" or "calling mode" compared with their baseline values. Short-time exposure to electromagnetic fields emitted by a mobile phone did not affect the cardiac autonomic modulation in healthy subjects.