Influence of information load on the dynamics of time parameters HRV in students with different levels of anxiety
DOI:
https://doi.org/10.29038/2617-4723-2019-388-4-115-124Keywords:
heart rate variability, anxiety, mobilizing potential, restorative potentialAbstract
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.
References
2. Baevsky, R. M. Theoretical and applied aspects of assessing and predicting the functional state of an organism under the influence of factors of long space flight: Actual speech at a meeting of the Scientific Council of the SSC RF. IBMP RAS: Moscow, 2005, 12–13.
3. Baevsky, R. M.; Ivanov, G. G. Heart rate variability: theoretical aspects and clinical applications. Ultrasd. and functional. Diagnostics, 2001, 3, 108–127.
4. Eliseeva, I. I. General theory of statistics. Finance and statistics: Moscow, 2004, 656.
5. Fedorov, V. N. Physiological mechanisms of the formation of adaptive heart rate reactions in adolescence. Bulletin of KarNU, 2009, 3, 5–6.
6. Goit, R. K.; Paudel, B. H.; Khadka, R.; Roy, R. K.; Shrewastwa, M. K. Mild-to-moderate intensity exercise improves cardiac autonomic drive in type 2 diabetes. J Diabetes Investig, 2014, 5(6), 722–727.
7. Isakov, I. A.; Lyashenko, V. P.; Petrov G. S. Vegetative manifestations of reactions of urgent adaptation of students to information load. Scientific Notes of Tavrida National University, 2013, 4, 46–59.
8. Nikishin, A. G.; Nurbaev, T. A.; Khasanov, M. S.; Abdullaeva. S. Y.; Yakubbekov, N. T. Possibility of the Heart Rate Variability Correction with a High Dose of Omega- 3-polyunsaturated Fatty Acids in Patients with Acute Myocardial Infarction and Concomitant Type 2 Diabetes Mellitus. International Journal of BioMedicine. 2014, 4(3), 138–142.
9. Pashukova, T. I. Practice Book on General Psychology. Znania: Kiev, 2000, 204.
10. Vigovska, O. Professionalism of a teacher as a guarantor of health protection. Director of the school, lyceum, gymnasium, 2005, 2, 48–50.
