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Fiziologichnyi Zhurnal - <a id="lj1_ret_bk_to_jl0_href_id" href="?list0=9">Fiziol. Zh. 2007;</a> <a id="lj1_ret_bk_to_jl0_href_id" href="?list1=41">53(2):</a> 36-40
Українська Русский English

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. 2007; 53(2): 36-40


The wave structure of the strokevolume and rr-intervals oscilla-tions in the low wave range ofheart rhythm

S.O.Kovalenko, S.I.Tokar

    Cherkasy National University named after BohdanHmelnytsky


Abstract

The spectral power of the RR-intervals and stroke volume (SV) oscillations in the range of 0.04-0.15Hz was estimated among 252 men aged 17-28. The maximum peak frequencies of RR- intervals spectrums and SV were significantly increased by loadings. There is a tendency to higher frequency of RR-inter- vals spectrum peaks in comparison with SV spectrum peaks. There are two waves on the diagram RR-intervals spectrum power at the state of rest and at tilt test testifying about two mechanisms of their formation. All the waves are in the range of 0.06-0.12Hz for RR-intervals and 0.05-0.11Hz for SV.

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