CORRECTION OF HEART RATE VARIABILITY USING DIAPHRAGMATIC BREATHING MODE BIOFEEDBACK IN HEALTHY PEOPLE
V.P. Feketa, L.A. Gleba, O.S. Palamarchuk, Ju. M. Savka, K.B. Kivezhdi
SHEI «Uzhhorod National University»
The research is an attempt to explain the use of portable computer
devices aiming to correct heart rate variability (HRV)
of healthy young men. According to the data, used deep
diaphragmatic breathing in mode of biofeedback harmonizes
breathing and blood circulation which positively affects the
body’s adaptive potential. However, developers present the
portable instruments of biofeedback primarily as a means of
psychological relaxation. The aim of this study is to determine
whether such devices are able to significantly affect heart rate
variability and how long this effect lasts.
There were 30 males aged 18 to 20 years that participated
in this study. They were randomly divided into three equal
groups with up to 10 people in each of them. Members of the
first group were doing breathing exercises using a portable
biofeedback StressEraser device, the second group used EmWave2,
and the third one used hardware and software system
MyCalmBeat. Each session lasted from 10 to 15 minutes.
There were 10 sessions held daily in the morning. HRV was
recorded by remote heart rate monitor Polar RS800CX and
software Polar ProTrainer5. 5-minutes’ stationary segments of
the curve chest electrocardiogram removal were used in order
to calculate the HRV indexes. It was found that 15 minutes
deep breathing in mode of biofeedback significantly affects
the heart rate variability of healthy young people. In particular,
it increases the overall heart rate variability according to the
statistical and spectral analysis. It was established that in all 3
groups of experiment participants the spectral curve low-range
“Low frequency” (LF) suffered the major shifts.
These shifts reflect the activity level of the sympathetic
autonomic nervous system (ANS) as well as vascular-motor
center according to the conventional interpretation. It was
found that all three groups suffered a specific weight decrease
of Very Low Frequency (VLF)% respectively 11.8 ± 2.2%; (p
<0,01); 6.6 ± 2.8%; (p <0,02) and 6.8 ± 2.4% (p <0,05). This
means that activity redistribution between different regulatory
components of heart rate occurred in favour of the peripheral
ANS parts. Heart rate variability changes of this kind remained
valid for at least one month after the experiment. The greatest
influence on heart rate variability was observed in the group
of people who used the device StressEraser.
autonomic nervous system; heart rate variability; diaphragmatic breathing; breathing exercises; biofeedback devices.
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