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Spectral Analysis of Heart Rate Variability During Mobile Phone Usage in First Year Medical Students


Affiliations
1 Department of Physiology, KMCH Institute of Health Science and Research, Coimbatore, India
2 Coimbatore, India
3 KMCH Institute of Health Science and Research, Coimbatore, India
4 Department of Community Medicine, KMCH Institute of Health Science and Research, Coimbatore, India
     

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Background: The electromagnetic radiations emitted by cellular telephones may influence the autonomic tone which modifies the functioning of the circulatory system.

Aim and Objectives: To estimate the effect of using mobile phones on heart rate variability (HRV) in first year medical students.

Method: ECG and HRV parameters are recorded in three periods, - when the subject is at rest without mobile phone (Period-I), with mobile phone kept on the left chest (Period-II) and when responding to a call by keeping the mobile over his right ear (Period-III) on 100 healthy subjects aged between 18 and 21 years of either sex.

Results:When the mobile was kept on chest or while attending a call,a decrease in high frequency (HF) in normalized units and increase in low frequency (LF) in normalized units and increase in the ratio of LF to HF (LF/HF) was observed in the frequency domain measures. Decrease in RR intervals, RMSSD and NN50 was observed in the time domain measures

Conclusion: The participants showed a higher sympathetic tone and a lower parasympathetic tone while attending a call. The study proved the intense effects of handset radiofrequency radiations on autonomic balance in healthy subjects.


Keywords

Heart Rate Variability, Electromagnetic Radiations, Mobile Phone Usage.
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  • Suhag AK, Larik RSA MangiGz, Khan M.Impact of Excessive Mobile Phone. Usage on Human Journal of Computer Science & Systems Biology 2016;9(6):173-177.
  • Altamura G, Toscano S, Gentilucci G, Ammirati F. Influence of digital and analogue cellular telephones on implanted pacemakers. European Heart journal.1997;18:1632–41.
  • Barbaro V, Bartolini P, Donato A, Militello C.1999. Electromagnetic interference of analog cellular telephones with pacemakers: in vitro and in vivo studies.1999;22:626–634.
  • Sofia Kottou, DimitriosNikolopoulos, EfstratiosVogiannis, DionysiosKoulougliotis, ErmioniPetraki,Panayiotis. How Safe is the Environmental Electromagnetic Radiation?Journal of Physical Chemistry and Biophysics. 2014;4(3)
  • Electromagnetic fields and public health: mobile phones 2014 ;[cited oct 8 2018]. Dpwnloaded from https://www.who.int/
  • Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz). International Commission on Non-Ionizing Radiation Protection. Health Phys 1998;74:494-522.
  • Media centre electromagnetic fields and public health:mobile phones.WHO 8th October 2014 [cited 2ndapril 2019]. Downloaded from https://www.who.int/news-room/fact-sheets/detail/electromagnetic-fields-and-public-health-mobile-phones
  • Analysis of the Mobile phone effect on the Heart rate variability by using the largest lyapunovexponent.Journal of medical system, springer link.2010;34(6):1097–1103.
  • Karthik S and Pal GK. Sympathovagal imbalance in thyroid dysfunctions in females: correlation with thyroid profile, heart rate and blood pressure. Indian J PhysiolPharmacol. 2009;53(3):243–52.
  • What is the International EMF Project? World health organisation.downloaded from www.who.int/peh-emf/project-2016; Aug 4
  • Ori Z, Monir G, Weiss S, Sayhouni X, Singer DH. Heart rate variability: frequency domain analysis. CardiolClin 1992; 10: 499–537.
  • Akselrod S, Gordon D, Obel FA, Shannen DC, Barges AC, Cohen RJ. Power spectral analysis of the heart rate fluctuation: a quantitative process of the beat-to-beat cardiovascular control. Science 1981; 213: 220–22
  • Barutcu I, Esen AM, Kaya D, Turkmen M, Karakaya O, Sağlam M, etal. Do mobile phones pose a potential risk to autonomic modulation of the heart? Pacing ClinElectrophysiol 2011;34: 1511-4.
  • Ryszard Andrzejak, RafalPoreba, MalgorzataPoreba.The Influence of the Call with a Mobile Phone on Heart Rate Variability Parameters in Healthy Volunteers. Industrial Health ,Field Report 2008;46:409–417.
  • BerkayEkici and AslıTanındı .The effects of the duration of mobile phone use on heart rate variability parameters in healthy subjects Anatol J Cardiol 2016; 16: 833-8.
  • Malliani A, Pagani M, Lombardi F, CeruttiS. Cardiovascular neural regulation explored in the frequencydomain, 1991;84:1482–92.
  • Kodavanji B, Mantur VS, Kumar NA, Pai SR. A pilot study on long term effects of mobile phone usage on heart rate variability in healthy young adult males. J Clinical diagnosis Res.2012;6:346-9.
  • Vangelova K, Deyanov C, Israel M. Cardiovascular risk in operators under radiofrequency electromagnetic radiation. Int J Hyg Environ Health 2006;209:133-8.

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  • Spectral Analysis of Heart Rate Variability During Mobile Phone Usage in First Year Medical Students

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Authors

Rekha
Department of Physiology, KMCH Institute of Health Science and Research, Coimbatore, India
Rashmi Ramanathan
Department of Physiology, KMCH Institute of Health Science and Research, Coimbatore, India
Jensy Sekar
Coimbatore, India
Ram Mohan
KMCH Institute of Health Science and Research, Coimbatore, India
Kalpaka
KMCH Institute of Health Science and Research, Coimbatore, India
S. Jeevithan
Department of Community Medicine, KMCH Institute of Health Science and Research, Coimbatore, India

Abstract


Background: The electromagnetic radiations emitted by cellular telephones may influence the autonomic tone which modifies the functioning of the circulatory system.

Aim and Objectives: To estimate the effect of using mobile phones on heart rate variability (HRV) in first year medical students.

Method: ECG and HRV parameters are recorded in three periods, - when the subject is at rest without mobile phone (Period-I), with mobile phone kept on the left chest (Period-II) and when responding to a call by keeping the mobile over his right ear (Period-III) on 100 healthy subjects aged between 18 and 21 years of either sex.

Results:When the mobile was kept on chest or while attending a call,a decrease in high frequency (HF) in normalized units and increase in low frequency (LF) in normalized units and increase in the ratio of LF to HF (LF/HF) was observed in the frequency domain measures. Decrease in RR intervals, RMSSD and NN50 was observed in the time domain measures

Conclusion: The participants showed a higher sympathetic tone and a lower parasympathetic tone while attending a call. The study proved the intense effects of handset radiofrequency radiations on autonomic balance in healthy subjects.


Keywords


Heart Rate Variability, Electromagnetic Radiations, Mobile Phone Usage.

References