Abstract
The heart rate (HR) variability and pulse wave delay (PWD) in the major arteries of schoolchildren were studied. The function of ordinary coherence of the HR and PWD was used, which reflects the linear relationship between the two processes in the heart and vessels. The high tone of the sympathetic part of the autonomic nervous system (ANS) in schoolchildren causes an increase in heart performance and decreases the shift in the phase of association between HR and PWD, which leads to the appearance of a new characteristic of the system, arterial rigidity. The results of the physiological activation of the sympathetic part of ANS during passive orthostasis and pharmacological trials with blockers of ANS receptors in schoolchildren with heart arrhythmia at rest are presented.
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Original Russian Text © L.Ya. Dotsoev, A.A. Astakhov, A.M. Usynin, 2011, published in Fiziologiya Cheloveka, 2011, Vol. 37, No. 3, pp. 27–35.
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Dotsoev, L.Y., Astakhov, A.A. & Usynin, A.M. Baroreceptor reflex and arterial rigidity in adolescents. Hum Physiol 37, 291–298 (2011). https://doi.org/10.1134/S0362119711020046
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DOI: https://doi.org/10.1134/S0362119711020046