Sensors,
Journal Year:
2023,
Volume and Issue:
23(5), P. 2390 - 2390
Published: Feb. 21, 2023
Sleep
staging
based
on
polysomnography
(PSG)
performed
by
human
experts
is
the
de
facto
“gold
standard”
for
objective
measurement
of
sleep.
PSG
and
manual
sleep
is,
however,
personnel-intensive
time-consuming
it
thus
impractical
to
monitor
a
person’s
architecture
over
extended
periods.
Here,
we
present
novel,
low-cost,
automatized,
deep
learning
alternative
that
provides
reliable
epoch-by-epoch
four-class
approach
(Wake,
Light
[N1
+
N2],
Deep,
REM)
solely
inter-beat-interval
(IBI)
data.
Having
trained
multi-resolution
convolutional
neural
network
(MCNN)
IBIs
8898
full-night
manually
sleep-staged
recordings,
tested
MCNN
classification
using
two
low-cost
(<EUR
100)
consumer
wearables:
an
optical
heart
rate
sensor
(VS)
breast
belt
(H10),
both
produced
POLAR®.
The
overall
accuracy
reached
levels
comparable
expert
inter-rater
reliability
devices
(VS:
81%,
κ
=
0.69;
H10:
80.3%,
0.69).
In
addition,
used
H10
recorded
daily
ECG
data
from
49
participants
with
complaints
course
digital
CBT-I-based
training
program
implemented
in
App
NUKKUAA™.
As
proof
principle,
classified
extracted
captured
sleep-related
changes.
At
end
program,
reported
significant
improvements
subjective
quality
onset
latency.
Similarly,
latency
showed
trend
toward
improvement.
Weekly
latency,
wake
time
during
sleep,
total
also
correlated
significantly
reports.
combination
state-of-the-art
machine
suitable
wearables
allows
continuous
accurate
monitoring
naturalistic
settings
profound
implications
answering
basic
clinical
research
questions.
Sensors,
Journal Year:
2021,
Volume and Issue:
21(13), P. 4302 - 4302
Published: June 23, 2021
Consumer-grade
sleep
trackers
represent
a
promising
tool
for
large
scale
studies
and
health
management.
However,
the
potential
limitations
of
these
devices
remain
less
well
quantified.
Addressing
this
issue,
we
aim
at
providing
comprehensive
analysis
impact
accelerometer,
autonomic
nervous
system
(ANS)-mediated
peripheral
signals,
circadian
features
stage
detection
on
dataset.
Four
hundred
forty
nights
from
106
individuals,
total
3444
h
combined
polysomnography
(PSG)
physiological
data
wearable
ring,
were
acquired.
Features
extracted
to
investigate
relative
different
streams
2-stage
(sleep
wake)
4-stage
classification
accuracy
(light
NREM
sleep,
deep
REM
wake).
Machine
learning
models
evaluated
using
5-fold
cross-validation
standardized
framework
assessment.
Accuracy
(sleep,
was
94%
simple
accelerometer-based
model
96%
full
that
included
ANS-derived
features.
57%
79%
when
including
Combining
compact
form
factor
finger
multidimensional
biometric
sensory
streams,
machine
learning,
high
wake-sleep
staging
can
be
accomplished.
Biosensors,
Journal Year:
2022,
Volume and Issue:
12(5), P. 292 - 292
Published: May 2, 2022
Cardiovascular
diseases
(CVDs)
are
the
leading
cause
of
death
globally.
An
effective
strategy
to
mitigate
burden
CVDs
has
been
monitor
patients'
biomedical
variables
during
daily
activities
with
wearable
technology.
Nowadays,
technological
advance
contributed
wearables
technology
by
reducing
size
devices,
improving
accuracy
sensing
be
devices
relatively
low
energy
consumption
that
can
manage
security
and
privacy
patient's
medical
information,
have
adaptability
any
data
storage
system,
reasonable
costs
regard
traditional
scheme
where
patient
must
go
a
hospital
for
an
electrocardiogram,
thus
contributing
serious
option
in
diagnosis
treatment
CVDs.
In
this
work,
we
review
commercial
noncommercial
used
CVD
variables.
Our
main
findings
revealed
usually
include
smart
wristbands,
patches,
smartwatches,
they
generally
such
as
heart
rate,
blood
oxygen
saturation,
electrocardiogram
data.
Noncommercial
focus
on
monitoring
photoplethysmography
data,
mostly
accelerometers
smartwatches
detecting
atrial
fibrillation
failure.
However,
using
without
healthy
personal
habits
will
disappointing
results
health.
Physiological Measurement,
Journal Year:
2022,
Volume and Issue:
43(4), P. 04TR01 - 04TR01
Published: March 23, 2022
Modern
deep
learning
holds
a
great
potential
to
transform
clinical
studies
of
human
sleep.
Teaching
machine
carry
out
routine
tasks
would
be
tremendous
reduction
in
workload
for
clinicians.
Sleep
staging,
fundamental
step
sleep
practice,
is
suitable
task
this
and
will
the
focus
article.
Recently,
automatic
sleep-staging
systems
have
been
trained
mimic
manual
scoring,
leading
similar
performance
experts,
at
least
on
scoring
healthy
subjects.
Despite
progress,
we
not
seen
adopted
widely
environments.
This
review
aims
provide
shared
view
authors
most
recent
state-of-the-art
developments
challenges
that
still
need
addressed,
future
directions
needed
achieve
value.
Sensors,
Journal Year:
2024,
Volume and Issue:
24(2), P. 635 - 635
Published: Jan. 19, 2024
The
development
of
consumer
sleep-tracking
technologies
has
outpaced
the
scientific
evaluation
their
accuracy.
In
this
study,
five
devices,
research-grade
actigraphy,
and
polysomnography
were
used
simultaneously
to
monitor
overnight
sleep
fifty-three
young
adults
in
lab
for
one
night.
Biases
limits
agreement
assessed
determine
how
stage
estimates
each
device
actigraphy
differed
from
polysomnography-derived
measures.
Every
device,
except
Garmin
Vivosmart,
was
able
estimate
total
time
comparably
actigraphy.
All
devices
overestimated
nights
with
shorter
wake
times
underestimated
longer
times.
For
light
sleep,
absolute
bias
low
Fitbit
Inspire
Versa.
Withings
Mat
Vivosmart
sleep.
Oura
Ring
any
duration.
deep
while
other
REM
all
devices.
Taken
together,
these
results
suggest
that
proportional
patterns
are
prevalent
could
have
important
implications
overall
Sleep Medicine Reviews,
Journal Year:
2024,
Volume and Issue:
76, P. 101951 - 101951
Published: May 7, 2024
Polysomnography
(PSG)
is
the
reference
standard
of
sleep
measurement,
but
burdensome
for
participant
and
labor
intensive.
Affordable
electroencephalography
(EEG)-based
wearables
are
easy
to
use
gaining
popularity,
yet
selecting
most
suitable
device
a
challenge
clinicians
researchers.
In
this
systematic
review,
we
aim
provide
comprehensive
overview
available
EEG-based
measure
human
sleep.
For
each
wearable,
an
will
be
provided
regarding
validated
population
reported
measurement
properties.
A
search
was
conducted
in
databases
OVID
MEDLINE,
Embase.com
CINAHL.
machine
learning
algorithm
(ASReview)
utilized
screen
titles
abstracts
eligibility.
total,
60
papers
were
selected,
covering
34
unique
wearables.
Feasibility
studies
indicated
good
tolerance,
high
compliance,
success
rates.
The
42
included
validation
across
diverse
populations
showed
consistently
accuracy
staging
detection.
Therefore,
recent
advancements
show
great
promise
as
alternative
PSG
at-home
monitoring.
Users
should
consider
factors
like
user-friendliness,
comfort,
costs,
these
devices
vary
features
pricing,
impacting
their
suitability
individual
needs.
Micromachines,
Journal Year:
2022,
Volume and Issue:
13(8), P. 1335 - 1335
Published: Aug. 17, 2022
Sleep
is
crucial
for
human
health
from
metabolic,
mental,
emotional,
and
social
points
of
view;
obtaining
good
sleep
in
terms
quality
duration
fundamental
maintaining
a
life
quality.
Over
the
years,
several
systems
have
been
proposed
scientific
literature
on
market
to
derive
metrics
used
quantify
as
well
detect
disturbances
disorders.
In
this
field,
wearable
an
important
role
discreet,
accurate,
long-term
detection
biophysical
markers
useful
determine
This
paper
presents
current
state-of-the-art
software
tools
staging
detecting
disorders
dysfunctions.
At
first,
discusses
sleep's
functions
importance
monitoring
eventual
disturbance
Afterward,
overview
prototype
commercial
headband-like
devices
monitor
presented,
both
reported
market,
allowing
unobtrusive
accurate
markers.
Furthermore,
survey
works
related
effect
COVID-19
pandemic
functions,
attributable
infection
lifestyle
changes.
addition,
algorithms
introduced
based
analysis
single
or
multiple
biosignals
(EEG-electroencephalography,
ECG-electrocardiography,
EMG-electromyography,
EOG-electrooculography,
etc.).
Lastly,
comparative
analyses
insights
are
provided
future
trends
systems.