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The effects of the duration of mobile phone use on heart rate variability parameters in healthy subjects [Anatol J Cardiol]
Anatol J Cardiol. 2016; 16(11): 833-838 | DOI: 10.14744/AnatolJCardiol.2016.6717  

The effects of the duration of mobile phone use on heart rate variability parameters in healthy subjects

Berkay Ekici1, Aslı Tanındı1, Gamze Ekici2, Erdem Diker3
1Department of Cardiology, Faculty of Medicine, Ufuk University, Ankara-Turkey
2Department of Occupational Therapy, Hacettepe University, Faculty of Health Sciences, Ankara- Turkey
3Department of Cardiology, Medicana International Ankara Hospital, Ankara-Turkey

Objective: This study aimed to estimate the influence of the duration of mobile phone use on heart rate variability (HRV) in healthy individuals. Methods: One hundred forty-eight individuals without any established systemic disease and who had undergone 24-h ambulatory ECG monitoring were included in the case-control study. All the individuals had been using mobile phones for more than 10 years. Three-channel 24-h Holter monitor- ing was performed to derive the mean heart rate, standard deviation of normal NN intervals (SDNN), standard deviation of 5-min (m) mean NN intervals (SDANN), the proportion of NN50 divided by the total number of NNs (pNN50), the root mean square differences of successive NN intervals (RMSSD), high (HF)-, low (LF)-, very low (VLF)-frequency power, total power components, and the LF/HF ratio. Individuals were divided into four groups according to their duration of mobile phone use [no mobile phone use (Control group), <30 min/day (Group 1), 30–60 min/day (Group 2), and >60 min/day (Group 3)]. Results: All the groups had similar features with regard to demographic and clinical characteristics. No significant arrhythmias were observed in any of the groups. The LF/HF ratio was higher, whereas the SDNN, SDANN, RMSSD, and pNN50 values were lower in the study groups than in the control group (p<0.05). No significant differences were identified among groups with respect to heart rate, VLF, and total power values (p>0.05). Conclusion: In this study, it was shown that the duration of mobile phone use may affect the autonomic balance in healthy subjects. The elec- tromagnetic field created by mobile phone use may induce HRV changes in the long term. (Anatol J Cardiol 2016; 16: 833-8)

Keywords: electromagnetic field, heart rate variability, mobile phone


Berkay Ekici, Aslı Tanındı, Gamze Ekici, Erdem Diker. The effects of the duration of mobile phone use on heart rate variability parameters in healthy subjects. Anatol J Cardiol. 2016; 16(11): 833-838

Corresponding Author: Berkay Ekici, Türkiye


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