L O Badalyan Neurological Journal,
Journal Year:
2023,
Volume and Issue:
4(4), P. 226 - 233
Published: Dec. 28, 2023
Biofeedback
is
increasingly
used
in
practice
due
to
diversity,
the
possibility
of
visualization
corrective
functions,
and
availability
objective
indicators
for
assessing
dynamics
training
process.
helps
teach
patients
skills
that
alleviate
their
condition,
support
active
functioning,
thereby
increasing
quality
life.
One
simple
methods
biofeedback
cardiorespiratory
training,
during
which
patient
learns
skill
diaphragmatic
relaxation
breathing,
effective
rehabilitation
various
pathologies,
especially
pediatric
practice.
This
type
based
on
control
breathing
heart
rate
variability
(HRV).
HRV
reflects
body’s
ability
quickly
recover
from
exposure
mental
physical
stress
factors.
a
unique
marker
person’s
cardiovascular
psychophysiological
health.
clinical
example
demonstrates
case
respiratory
correction
with
comorbidities
(multiple
sclerosis,
essential
arterial
hypertension,
panic
disorder).
The
was
chosen
as
most
optimal
improving
patient’s
life,
respect
leading
complaint
attacks.
main
goals
this
child
allowed
learning
cope
future
attacks,
reduce
anxiety
improve
his
well-being.
article
describes
detail
course
recommended
exercises
daily
use,
presents
positive
trend
recorded
condition
by
end
course.
Cardiorespiratory
an
understandable
method
can
be
actively
assessment
classes
performed
psycho-emotional
children
adolescents
pathologies.
Applied Psychophysiology and Biofeedback,
Journal Year:
2022,
Volume and Issue:
47(4), P. 273 - 287
Published: Nov. 22, 2022
Mental
illness
such
as
depression
and
anxiety
well
cerebrovascular
disease
are
linked
to
impairment
of
neurocardiac
function
mediated
by
changes
the
autonomic
nervous
system
with
increased
sympathetic
decreased
parasympathetic
activity.
Autonomic
can
be
evaluated
computing
heart
rate
variability
(HRV).
Over
past
decades,
research
has
demonstrated
diagnostic
value
HRV
independent
predictor
cardiovascular
mortality
marker
in
progressive
disorders
Parkinson's
disease.
Here
we
summarize
our
studies
on
its
therapeutic
modulation
context
psychopharmacology
psychiatric
neurological
honor
life
Professor
Evgeny
Vaschillo,
true
pioneer
who
sadly
passed
away
November
21st,
2020.
Frontiers in Physiology,
Journal Year:
2023,
Volume and Issue:
13
Published: Jan. 23, 2023
We
discuss
Heart
Rate
Variability
(HRV)
measured
during
mindful
breathing
meditation.
provide
a
pedagogical
computation
of
two
commonly
used
heart
rate
variability
metrics,
i.e.
the
root
mean
square
successive
differences
(RMSSD)
and
standard
deviation
RR
intervals
(SDRR),
in
terms
Fourier
components.
It
is
shown
that
preferentially
weights
higher
frequency
modes,
making
it
unsuitable
as
biosignal
for
meditation
which
encourages
slow
breathing.
propose
new
metric
called
autonomic
balance
index
(ABI)
uses
Respiratory
Sinus
Arrhythmia
to
quantify
fraction
contributed
by
parasympathetic
nervous
system.
apply
this
data
collected
different
techniques,
show
significantly
elevated
breathing,
good
signal
biofeedback
sessions.
Sensors,
Journal Year:
2025,
Volume and Issue:
25(9), P. 2942 - 2942
Published: May 7, 2025
Hand
displacements
during
task-directed
movements
are
not
random,
but
exhibit
fractal
behavior.
Wearable
sensing
e.g.,
accelerometer-derived
hand
movement
fluctuations,
could
add
a
significant
contribution
to
cognitive
and
behavioral
sciences,
by
accounting
for
dynamics.
In
particular,
multifractal
testing
of
fluctuation
time
series
has
been
shown
reflect
the
adaptive
use
cognition,
i.e.,
flexibility.
This
important
property
might
be
enhanced
an
improved
mental
state.
Here,
experimental
group
(16
participants,
3
females)
practiced
5
min
cardiac
coherence
(CC)
prior
flexibility
task
was
compared
control
(13
4
females).
Accelerometer-derived
motion
analyzed
using
multifractal-multiscale
detrended
analysis
(MFMS-DFA)
involving
flexibility,
Wisconsin
Card
Sorting
Test
(WCST).
WCST
included
four
phases
alternating
cards
with
original
shapes
or
animal
pictures
developed
children
in
previous
research.
derived
from
wearable
accelerometer
effectively
exhibited
nonlinear
multifractality
as
linearized
surrogates
testing.
Multifractal-multiscale
metrics
revealed
effects
pre-task
CC
practice,
specifically
shape
condition
where
participants
showed
lower
degree
despite
similar
performances
(perseverative
errors).
We
conclude
that
make
interpreting
changes
Applied Psychophysiology and Biofeedback,
Journal Year:
2024,
Volume and Issue:
49(3), P. 407 - 417
Published: March 20, 2024
Slow-paced
breathing
at
an
individual's
resonance
frequency
(RF)
is
a
common
element
of
heart
rate
variability
(HRV)
biofeedback
training
(Laborde
et
al.
in
Psychophysiology
59:e13952,
2022).
Although
there
strong
empirical
support
for
teaching
clients
to
slow
their
respiration
(RR)
the
adult
RF
range
between
4.5
and
6.5
bpm
(Lehrer
&
Gevirtz,
2014),
have
been
no
definitive
findings
regarding
best
inhalation-to-exhalation
(IE)
ratio
increase
HRV
when
within
this
range.
Three
methodological
challenges
frustrated
previous
studies:
ensuring
participants
breathed
target
RR,
IE
ratio,
same
RR
during
each
ratio.
The
reviewed
studies
disagreed
effect
ratios.
found
(Cappo
Holmes
J
Psychosom
Res
28:265-273,
1984;
Edmonds
Biofeedback
37:141-146,
2009;
Klintworth
Physiol
Meas
33:1717-1731,
2012).
One
reported
advantage
equal
inhalations
exhalations
(Lin
Int
Psychophysiol
91:206?211,
2014).
Four
observed
longer
than
(Bae
58:e13905,
2021;
Laborde
Sustainability
13:7775,
Strauss-Blasche
Clin
Exp
Pharmacol
27:601?60,
2000;
Van
Diest
Appl
39:171?180,
study
(Paprika
Acta
Hung
101:273?281,
We
conducted
original
(N
=
26)
replication
16)
determine
whether
1:2
produces
different
time-domain,
frequency-domain,
or
nonlinear
metrics
1:1
6
bpm.
Our
that
did
not
affect
time-
frequency-domain
metrics.
confirmed
these
results
on
measurements.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: June 4, 2023
Abstract
Background
Adolescents
with
autism
present
lower
levels
of
cardiac
vagal
modulation
in
comparison
to
typically
developing
peers.
These
values
are
also
associated
psychosocial
and
behavioral
problems.
Heart
Rate
Variability
Biofeedback
(HRVB)
was
therefore
suggested
as
an
interesting
avenue
for
further
exploration
since
it
focusses
on
the
up-regulation
has
demonstrated
positive
effects
mental
health
outcomes.
However,
scarce
evidence
regarding
effectiveness
HRVB
this
population.
It
hypothesized
that
would
increase
level
adolescents
which
result
physiological
outcome
measures
parameters.
Furthermore,
a
home-based,
non-supervised
training
be
feasible
Methods
A
single-blind,
randomized
sham-controlled
pilot
trial
used.
During
initial
single-blind
phase,
performed
supervised
(n=24)
or
sham
(n=20)
five
weeks
one
guided
session
per
week
home-based
practice
(20
min)
remaining
days.
In
subsequent
follow-up
period
weeks,
half
each
group
received
at
home,
manner,
whereas
other
subset
did
not
during
period.
combination
physiological,
cortisol
data
collected
standardized
stress-provoking
assessments
before
(T0)
after
(T1
T2).
Results
Supervised
resulted
late
autism.
rate
increased
decreased
significantly
immediately
training,
but
none
these
remained
weeks.
None
functioning
self-reported
stress
revealed
significant
change
following
training.
The
population
decrease
compliance
rate.
reported
symptoms
period,
regardless
prior
(sham
HRVB).
Conclusion
is
effective
by
late-emerging
increases
less
stress.
Researchers
encouraged
replicate
study
larger
sample
size
explore
possible
working
mechanisms
HRVB.
