Security Issues
Security issues are concerns about safety. They involve activities or movements
that elicit fear. We don't want to get hurt.
In the case of physically challenged individuals, the fear
is usually of falling. Security Issues are
based on actual events and justifiable concerns. An example
of a security issue for anyone is walking on ice. One
discovers quickly that they must alter their walking
strategy. It may be based on a previous experience or the
mere fact of losing control without actually falling. One
soon learns to alter their walking strategies. Most people
will crouch down a little and spread their feet out. This
lowers the center of gravity and increases the foundation.
The concentration required for movement is intense and
becomes the primary focus of attention. Shorter steps or
even shuffling the feet without lifting them is safer. Arms
are spread out to help with balance. All these compensations
are made to reduce the security risk. If these strategies
don't work, it may be necessary to get down on all fours and
crawl to safety.
It is human nature to make compensations
for security reasons. Security issues in CMT can become a
routine part of daily life. This may happen gradually over
time. Each falling episode has a cumulative effect.
Ultimately ambulation becomes a conscious effort. Normal
ambulation is an unconscious activity. Security issues can
make ambulation a conscious activity. This creates
compensations, balance problems and a lack of efficiency.
Until the security issues have been solved, compensations
will be made. In the case of a typical individual on ice,
the security issues are eliminated upon reaching dry ground.
For the individual with CMT, security issues become
ingrained in the subconscious mind; in other words, the
compensations become normal in spite of the
lack of efficiency. Understanding that they exist,
recognizing and understanding their purpose and providing a solution will return security and efficiency
to near normal levels.
Security issues causing compensations in
CMT are learned activities. They ultimately become habits.
Each person demonstrates unique characteristics and degree
of severity. The most common examples of security issues in
gait are decreased standing and walking balance, tripping
over the feet, ankles rolling over and for some, knees
buckling.
Difficulty with balance is
one of the most common security issues in CMT. This is
caused by a combination of weak muscles and progressive
deformities in the foot and ankle complex; in addition,
balance is normally maintained by a complex array of
neuro sensors and muscles. This is called proprioception. Proprioception can be defined as the awareness
of the body in space or the awareness of the position of a
body part without visual cues. As the body leans too far,
sensors send messages to activate muscles to oppose that
movement and return to the original upright position. In
CMT, the sensors and muscles that provide proprioception may
not be working properly. Instead of small activation of a
few muscles to maintain standing in one place, the
individual with CMT often has to take quick steps to catch
and right themselves.
Tripping or the loss of balance heightens
the awareness of security issues and the fear of falling.
The most common compensation is to lift the whole leg high
enough to clear the foot that is dropping. As weakness
progresses, the leg must be lifted higher. This compensation
is called high steppage gait. One must lift
15% of one's body weight straight up against gravity on each
step. This involves increased energy expenditure and creates
balance problems.
The ankle rolling over also affects
balance and the fear of falling to one's side unexpectedly.
This is caused by deformities from an imbalance of muscles.
Certain nerves are affected more than others, thus affecting
the precious balance of muscle strength. 70% of people with
CMT tend to have more of a discrepancy that causes
excessively high arches called pes cavus. As
the deformity increases, the ankle is very susceptible to
rolling over to the outside. Falls, ankle sprains, and even
fractures are all quite possible and common. The
compensations are spreading the feet, slowing down, shorter
steps, quicker steps and no longer shifting one's body
weight over the feet. Ultimately, balance becomes
impossible.
The buckling of the knees is less common
than the previous issues; however, the resulting security
issue dramatically increases the chances of falling. To
prevent the likelihood of knees buckling, one will start
snapping their knees backwards on each step. This creates
hyperextension at the knee. (also called recurvatum) This
repetitive compensation in time stretches the structures on
the back of the knees. The structures involve ligaments,
tendons, joint capsules, nerves and blood vessels. The
recurvatum is classified as mild, moderate and severe and
will progress if not prevented. Pain can also be associated
with recurvatum. To be secure, one rapidly moves 15% of
their body weight 180 degrees away from the intended forward
direction. A secondary compensation often associated
recurvatum is the forward movement of the upper body over
the weight bearing leg during stance. Before a step can be
taken on the other side, the trunk must move backward and to
the opposite side. Since the trunk comprises 70% of the body
weight, this constant and repetitive movement increases
effort and energy expenditure tremendously! The body is
literally moving in opposite directions at the same time!
This is extremely inefficient.
In order to be effective, bracing
solutions™ must recognize and address all security
issues. This includes structural and functional deficits in
addition to the compensations and their causes that are
unique to the individual with CMT. Deviations and habits
caused by security issues must be solved in order to achieve
balance and efficiency. Remodeling tight
structures will improve security, balance and efficiency as
well as improve weight distribution on one's feet. As
anatomical positioning improves, security and balance
improve. This allows for the restoration of proper movement
patterns that ultimately leads to optimal efficiency and a
return of a normal gait.
Efficiency is defined as productive with
minimal effort or capable. The underlying goal of DynamicBracingSolutions™ is to allow movement in the most efficient manner. Solving
all the complex issues in each of the three planes
throughout the gait cycle and preventing further
deformities, translates into efficiency. Ambulation is
fundamental trait of human beings. It is an unconscious
activity that is often "taken for granted." Gait can only be
an unconscious activity if it is optimally efficient. The
desire to ambulate is based upon this notion. Insecurity and
fear leading to compensations and balance problems diminish
the desire to ambulate.
We believe at DynamicBracingSolutions™,
that new possibilities have been recognized and have
developed the technology in order to deal with complex
pathomechanical profiles. Outcomes once thought unobtainable are now possible.
Do we have solutions for
CMT? In most cases, the answer is absolutely
yes! We believe there are no other braces that can
remotely compare to our dynamic remodeling orthotic
support systems. It is our commitment to
individualized solutions in CMT that makes us unique in the
orthotic profession.