Muscle Activity After Stroke: Perspectives on Deploying Surface Electromyography in Acute Care
Frontiers in Neurology,
Год журнала:
2020,
Номер
11
Опубликована: Сен. 23, 2020
After
a
stroke,
clinicians
and
patients
struggle
to
determine
if
when
muscle
activity
movement
will
return.
Surface
electromyography
(EMG)
provides
non-invasive
window
into
the
nervous
system
that
can
be
used
monitor
activity,
but
is
rarely
in
acute
care.
In
this
perspective
paper,
we
share
our
experiences
deploying
EMG
clinic
stroke
survivors.
Our
have
demonstrated
care
both
feasible
useful.
We
found
current
technology
comfortably
non-obtrusively
even
for
with
no
detectable
by
traditional
clinical
assessments.
Monitoring
may
help
quantify
track
recovery,
inform
rehabilitation.
With
further
research,
perceive
opportunities
using
prognosis,
enable
biofeedback
training,
provide
metrics
necessary
supporting
justifying
To
leverage
these
opportunities,
identified
important
technical
challenges
barriers
need
addressed.
Affordable
wireless
high-quality
data
comfortable,
secure
interfaces
worn
extended
periods
are
needed.
Data
from
systems
quickly
automatically
processed
create
round-ready
results
easily
interpreted
team.
believe
addressed
integrating
improving
methods
technology.
Deploying
open
new
pathways
understanding
recovery
individuals
neurologic
injury
beyond.
Язык: Английский
Dry Epidermal Electrodes Can Provide Long-Term High Fidelity Electromyography for Limited Dynamic Lower Limb Movements
Sensors,
Год журнала:
2020,
Номер
20(17), С. 4848 - 4848
Опубликована: Авг. 27, 2020
Due
to
the
limitations
of
standard
wet
Silver/Silver
Chloride
(Ag/AgCl)
hydrogel
electrodes
and
growing
demand
for
long-term
high
fidelity
surface
electromyography
(EMG)
recording,
dry
epidermal
are
great
interest.
Evaluating
usability
signal
could
help
determine
extent
potential
applications
using
EMG
electrodes.
We
collected
signals
over
eight
days
from
right
rectus
femoris
seven
subjects
single-use
traditional
Ag/AgCl
while
covered
uncovered
during
dynamic
movements
(leg
extension,
sit-to-stand,
treadmill
walking
at
0.75
m/s
1.30
m/s).
quantified
signal-to-noise
ratio
(SNR);
signal-to-motion
(SMR);
a
metric
we
previously
developed,
Signal
Quality
Index,
which
considers
that
better
quality
requires
both
good
ratio.
Wear
patterns
degraded
quality.
Uncovered
remained
intact
maintained
adhesion
skin
had
ratios,
Index
values
were
above
acceptable
thresholds
limited
lower
limb
extension
sit-to-stand).
This
indicated
provide
across
all
five
these
movements.
For
walking,
ratios
still
threshold,
but
far
below
thresholds.
The
showed
no
visible
wear
was
stable
days.
As
expected,
covering
improved
quality,
only
Overall,
able
maintain
recording
movements,
further
improvement
is
needed
reduce
motion
artifacts
whole
body
such
as
walking.
Язык: Английский
The Development of an Underwater sEMG Signal Recognition System Based on Conductive Silicon
Опубликована: Окт. 1, 2019
Stroke
patients
need
rehabilitation
to
recover
their
abilities
of
moving,
and
the
underwater
can
reduce
possibility
secondary
injury
during
process.
Collecting
surface
electromyography
(sEMG)
signals
provide
better
guidance
medical
doctors.
However,
current
sEMG
electrodes
cannot
be
applied
collect
underwater.
To
solve
this
problem,
we
propose
a
soft
electrode
based
on
conductive
silicon.
The
time
domain
frequency
features
are
extracted.
identified
by
Back
Propagation
Neural
Network
(BPNN)
under
dry,
simulated
sweating
water
environments
respectively.
Under
dry
environment,
there
is
no
significant
difference
in
recognition
accuracy
between
silicon
Ag/AgCl
electrode.
acquired
95.47%
employing
features.
Язык: Английский
A Preliminary Usability Study of Integrated Electronic Tattoo Surface Electromyography (sEMG) Sensors
2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC),
Год журнала:
2023,
Номер
unknown, С. 1 - 4
Опубликована: Июль 24, 2023
Surface
electromyography
(sEMG)
sensor
measures
the
user's
muscle
activities
by
noninvasively
placing
electrodes
on
surface
of
skin.
It
has
been
widely
used
in
monitoring
various
human
movements.
Recently
a
wearable
and
flexible
epidermal
system
called
Electronic
Tattoo
(E-Tattoo)
developed
to
enable
intimate
attachment
skin,
improving
long-term
comfort.
In
order
make
E-Tattoo
usable
activities,
it
is
always
connected
with
connector
signal
processing
blocks
collect
process
measured
sEMG
signals.
We
call
an
integrated
system.
This
paper
investigates
usability
prototype
laboratory
for
testing
its
comfort
user
experience
surveys
comparing
quality
signals
performance
metrics.
Two
typical
movements,
maximum
voluntary
isometric
non-isometric
contractions,
are
considered
experiments.
Our
preliminary
results
five
subjects
demonstrate
effectiveness
proposed
showed
comparable
these
two
movements
as
commercial
product
much
better
feeling
from
user.
also
interesting
note
that
this
shows
signal-to-motion
artifact
ratio
(SMR),
which
reflects
ability
measure
during
active
compared
product,
showing
potential
using
sEMGs
dynamic
Язык: Английский