Influence of information load on the dynamics of time parameters HRV in students with different levels of anxiety

Authors

  • Karina Gochachko Lesya Ukrainka Eastern European National University
  • Tetiana Kachinska Lesya Ukrainka Eastern European National University
  • Olha Abramchuk Lesya Ukrainka Eastern European National University
  • Natalia Kormosh Lesya Ukrainka Eastern European National University
  • Maryana Matolinets Lesya Ukrainka Eastern European National University

DOI:

https://doi.org/10.29038/2617-4723-2019-388-4-115-124

Keywords:

heart rate variability, anxiety, mobilizing potential, restorative potential

Abstract

The aim of this study was to identify the effect of information load on the dynamics of time parameters HRV in students with different levels of anxiety.
The research was conducted on 28 males and females, 18-20 years old, divided into groups: I – high level of personal anxiety, II – medium level of personal anxiety. The experiment involved 2 stages: psychological; HRV record. The cardiointervalogram was registered with the usage of computer cardiographic complex «KardioLab». The recording of HRV was conducted in experimental situations: resting state – background (I) test, recording of HRV during information load – II test, recording of HRV during motivational reinforcement – III test. Time indices of HRV were investigated.
Students with high level anxiety during information load the timing indexes of HRV decreased – mRR, SDNN, RMSSD, pNN50, Mo, whereas Amo, SI – increased. In students with moderate anxiety mRR, SDNN, RMSSD, pNN50, Mo – increased, and Amo, SI – decreased. This indicates the predominance of the sympathetic part of the autonomic nervous system in the studied both experimental groups with more pronounced changes in students with high levels of anxiety. At the same time there are large energy costs of the body's regulatory systems to maintain homeostasis. Reduction of HRV parameters is accompanied by centralization of regulation of heart rhythm, which indicates a shift of autonomic homeostasis toward the predominance of sympathetic nervous system activity. The subjects with high personal anxiety are characterized by the phenomenon of compensated distress, which increases the risk of diseases of the cardiovascular system and reduces the level of adaptation to the comprehensive flow of information.

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Published

2019-12-25

How to Cite

Influence of information load on the dynamics of time parameters HRV in students with different levels of anxiety. (2019). Notes in Current Biology, 4(388). https://doi.org/10.29038/2617-4723-2019-388-4-115-124