A Comprehensive Understanding of Postural Tone Biomechanics: Intrinsic Stiffness, Functional Stiffness, Antagonist Coactivation, and COP Dynamics in Post-Stroke Adults
Sensors,
Journal Year:
2025,
Volume and Issue:
25(7), P. 2196 - 2196
Published: March 30, 2025
To
analyse
the
relationship
between
traditional
stiffness
and
muscle
antagonist
coactivation
in
both
stroke
healthy
participants,
using
linear
non-linear
measures
of
COP
during
standing,
stand-to-sit,
gait
initiation.
Participants
were
evaluated
through
a
cross-sectional
design.
Electromyography,
isokinetic
dynamometer,
force
plate
used
to
calculate
coactivation,
intrinsic
functional
stiffness,
displacement,
with
metrics.
Spearman's
correlations
Mann-Whitney
tests
applied
(p
<
0.05).
Post-stroke
participants
showed
higher
contralesional
=
0.041)
0.047).
Coactivation
was
on
ipsilesional
side
standing
0.012)
reduced
transitions
0.01).
Moderate
found
0.030)
(standing
stand-to-sit:
p
0.048)
(gait
initiation:
0.045).
displacement
post-stroke
0.001)
increased
initiation
0.001).
exhibited
gastrocnemius/tibialis
anterior
0.038)
entropy
stability
across
tasks
static
tasks,
dynamic
tasks.
analyses
revealed
impaired
random
control,
highlighting
importance
multidimensional
evaluations
postural
tone.
Language: Английский
Evaluation and modeling of diaphragm displacement using ultrasound imaging for wearable respiratory assistive robot
Yan Zhang,
No information about this author
Danye Li,
No information about this author
Fengyao Zhang
No information about this author
et al.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2024,
Volume and Issue:
12
Published: Aug. 16, 2024
Introduction
Assessing
the
influence
of
respiratory
assistive
devices
on
diaphragm
mobility
is
essential
for
advancing
patient
care
and
improving
treatment
outcomes.
Existing
robots
have
not
yet
effectively
assessed
their
impact
mobility.
In
this
study,
we
introduce
first
time
a
non-invasive,
real-time
clinically
feasible
ultrasound
method
to
evaluate
soft
wearable
displacement.
Methods
We
measured
compared
displacement
lung
volume
in
eight
participants
during
both
spontaneous
robotic-assisted
respiration.
Building
these
measurements,
proposed
human-robot
coupled
two-compartment
mechanics
model
that
elucidates
underlying
mechanism
by
which
our
extracorporeal
augments
Specifically,
robot
applies
external
compression
abdominal
wall
muscles,
inducing
inward
movement,
consequently
pushes
upward
enhances
function.
Finally,
investigated
level
shape
various
robotic
forces
motion.
Results
This
intervention
leads
significant
increase
average
1.95
times
2.14
Furthermore,
accuracy
confirmed
experimental
results,
with
less
than
7%
error
measurements
volume.
magnitude
positively
correlates
while
shows
no
relationship
activity.
Conclusion
Our
findings
validate
effective
assistance
robot,
assists
ventilation
through
intervention.
system
can
assist
increasing
mobility,
potentially
resolving
issue
atrophy.
Additionally,
work
paves
way
improved
designs
personalized
assistance,
tailored
dynamics
rehabilitation.
Language: Английский
Multivariable analysis for predicting lower limb muscular strength with a hip-joint exoskeleton
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2024,
Volume and Issue:
12
Published: Oct. 24, 2024
Advancements
in
exercise
science
have
highlighted
the
importance
of
accurate
muscular
strength
assessments
for
optimizing
performance
and
preventing
injuries.
Language: Английский
Knowledge mapping and research trends of brain-computer interface technology in rehabilitation: a bibliometric analysis
Frontiers in Human Neuroscience,
Journal Year:
2024,
Volume and Issue:
18
Published: Oct. 30, 2024
Although
the
application
of
brain-computer
interface
(BCI)
technology
in
rehabilitation
has
been
extensively
studied,
a
systematic
and
comprehensive
bibliometric
analysis
this
area
remains
lacking.
Thus,
study
aims
to
analyze
research
progress
BCI
through
methods.
Language: Английский
Research hotspots and frontiers of vagus nerve stimulation in stroke: a bibliometric analysis
Frontiers in Neuroscience,
Journal Year:
2024,
Volume and Issue:
18
Published: Dec. 11, 2024
Vagus
nerve
stimulation
(VNS)
has
emerged
as
a
promising
therapeutic
approach
for
stroke
treatment,
drawing
significant
attention
due
to
its
potential
benefits.
However,
despite
this
growing
interest,
systematic
bibliometric
analysis
of
the
research
landscape
is
yet
be
conducted.
Language: Английский