International Journal of Science , Engineering and Management (IJSEM)

Monthly Journal for Science , Engineering and Management

Volume1,June 2016,

Topic : Phase Synchronization analysis of Heart Rate Variability and Systolic Blood Pressure Variability under Postural Stress

Authors:Barjinder Singh Saini || Amritpal Singh, Dilbag Singh

Abstract:In this paper, the coupling between heart rate variability (HRV) and systolic blood pressure variability is analyzed using a non-linear measure called phase synchronization index (PSI). 20 healthy subjects alongwith 20 post myocardial patients undergong postural stress were used for analysis. The results were validated on standard EuroBaVar dataset. Results demonstrate that i) for healthy subjects PSI in the low frequency (LF) range i.e. (0.04-0.15) Hz is greater than PSI in the high frequency (HF) range i.e. (0.151-0.4) Hz in the lying position. ii) LF-PSI is less than HF-PSI in the standing position ii) for post AMI patients, LFPSI is greater than HF-PSI irrespective of the change in posture. In conclusion, it is found that there is a coupling between HRV and SBPV that varies in the LF and HF regions. This coupling changes with a change in the posture from lying to standing due to change in the autonomous drive occurring due to predominance of vagal over the sympathetic drive. This change is suppressed in the post AMI patients due to possible inactivity of the Baroreflex control..

Keywords: autonomic nervous system, heart rate variability, systolic blood pressure variability, phase synchronization, coupling, baroreflex

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DOI: 01.1617/vol1iss2pid0010007

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Volume1 ,June 2016.


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Dr.Muhammad Ishtiaq,
Mirpur University of
Science & Technology,
Mirpur, Azad Kasmir.

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ISSN(Online): 2456-1304

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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Journal Code : IJSEM
Electronic ISSN : 2456-1304
Impact Factor : 2.7
Frequency : Monthly
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