6533b7d2fe1ef96bd125df82
RESEARCH PRODUCT
No Effects of Pulsed High-Frequency Electromagnetic Fields on Heart Rate Variability during Human Sleep<sup>1</sup>
Harald BetaKlaus MannBernhard J. ConnemannJoachim Röschkesubject
Sleep Stagesmedicine.medical_specialtymedicine.diagnostic_testRapid eye movement sleepPolysomnographyPsychiatry and Mental healthAutonomic nervous systemNeuropsychology and Physiological PsychologyInternal medicineHeart ratemedicineCardiologyHeart rate variabilityPsychologyElectrocardiographyBiological PsychiatrySlow-wave sleepdescription
The influence of pulsed high-frequency electromagnetic fields emitted by digital mobile radio telephones on heart rate during sleep in healthy humans was investigated. Beside mean RR interval and total variability of RR intervals based on calculation of the standard deviation, heart rate variability was assessed in the frequency domain by spectral power analysis providing information about the balance between the two branches of the autonomic nervous system. For most parameters, significant differences between different sleep stages were found. In particular, slow-wave sleep was characterized by a low ratio of low- and high-frequency components, indicating a predominance of the parasympathetic over the sympathetic tone. In contrast, during REM sleep the autonomic balance was shifted in favor of the sympathetic activity. For all heart rate parameters, no significant effects were detected under exposure to the field compared to placebo condition. Thus, under the given experimental conditions, autonomic control of heart rate was not affected by weak-pulsed high-frequency electromagnetic fields.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 | Neuropsychobiology |