III.
GENERAL
APPLICATIONS
STRETCHING
Flexibility
is
an
important
component
of
successful
physical
performance
for
activities
of
daily
living,
enhanced
athletic
ability,
as
well
as
injury
prevention.
Greater
flexibility
increases
the
range
of
motion
of
the
joints
by
increasing
the
extendibility
of
the
musculotendinous
units
responsible
for
joint
articulation.
These
units
are
responsible
for
the
movement
and
articulation
of
that
joint.
Stretching
helps
prevent
injury
and
increases
the
overall
power
of
the
patient.
STRENGTHENING
Strength
is
the
ability
of
a
muscle
to
generate
force
against
resistance.
Maintaining
a
certain
level
of
strength
is
important
for
activities
of
daily
living
as
well
as
preventing
injury.
Strength
is
also
paramount
to
developing
endurance
and
power
in
an
athlete.
The
resistance
provided
by
the
Elasticords
of
the
Shuttle
Recovery
continues
to
increase
through
the
range
of
motion.
Therefore,
initial
settings
of
the
Elasticords
and
body
positioning
may
be
adjusted
as
the
injury
or
condition
of
the
athlete
dictates:
as
the
carriage
moves
up
the
rails,
the
resistance
increases
as
the
mechanical
advantage
increases.
FUNCTIONAL
CLOSED
CHAIN
The
Shuttle
Recovery
has
become
an
integral
part
of
closed
chain
therapy.
Closed
chain
motion
occurs
when
both
the
proximal
and
distal
bone
segments
are
fixed
and
there
is
movement
on
both
sides
of
the
joint
being
evaluated.
For
example,
when
performing
a
squat
on
the
Shuttle
Recovery,
the
feet
remain
in
contact
with
the
kickplate
as
the
patient
extends
and
flexes
their
knees,
moving
the
bone
segments
on
either
side
of
the
knee
joint.
This
form
of
exercise
is
functional
because
most
of
our
daily
activities
involving
the
lower
extremities
are
done
with
our
feet
in
contact
with
the
ground.
Muscle
contractions
that
occur
in
closed
chain
motions
are
also
different
than
those
occurring
in
open
chain.
The
advantages
to
closed
chain
activities
are
the
following:
1. Exercises
for
an
unstable
joint,
such
as
a
cruciate
deficient
knee,
can
be
performed
safely
with
the
feet
in
contact
with
the
ground.
The
inherent
stability
of
the
joint
is
greater
when
it
is
loaded
and
in
a
weight
bearing
position
as
opposed
to
being
unsupported
and
free
to
move.
2. Closed
chain
activities
stimulate
mechano-receptors
responsible
for
the
joint’s
sense
of
proprioception.
3. There
is
greater
muscle
activity
through
muscle
co-contractions
around
the
joint
in
closed
chain
than
open
chain.
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of
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