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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2013; 59(3): 97-101

The dynamic of annual modification of phasic structure of cardiac cycle in children of junior school age

Iashchenko AH1, Vdovychenko OM2

  1. State Scientific Research Institute of Physical Culture andSports, Kyiv, Ukraine
  2. O.O. Bogomoletz National Medical University, Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz59.03.097


Abstract

By using of the method of tetrapolar impedance rheopletysmography we studied the phasic structure of cardiac cycle in children of junior school age. We have shown that a decrease of cardiac cycle duration in children is due to a decrease of the common diastole duration, the mean fraction of which in children of six years is 48.58% from the cardiac cycle duration. With age the duration of cardiac cycle increases. In 12 y.o. children this parameter is significantly higher (0.702 +/- 0.020s) that that observed in 6 y.o. children (0.636 +/- 0.017s). The shortest duration of cardiac cycle is detected in 10 y.o. children (0.617 +/- 0.018 s).

Keywords: phasic structure of cardiac cycle, the children ofjunior school age

Full text: (PDF, in Ukrainian)

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