Bio-Mechanics and Orthotics
Bio-mechanics
Bio-mechanics is a branch of medical technology which deals
with the structure and engineering of the human body, with
particular emphasis on motion and mobility. Most people
(85%) are not born with "perfect" feet from an
engineering point of view, but will have one or more "structural
defects". These areas will normally manifest themselves
as problems in middle age, or maybe even later. In more
severe case the symptoms will appear much earlier, with
teenagers complaining of knee pain. Some youngsters may
develop bunions at a very early age, or the more commonly
recognised "flat feet". Pain or any foot or toe
deviation would be indicative of a possible Biomedical fault,
and would be worthy of investigation.
It may surprise you to know that many knee, hip, back and
neck problems have their origins in the feet. For example
someone who walks with an excessively pronated (very flat)
foot is likely to develop knee and lower back pain as a
result. On the other hand, limited ankle dorsiflexion (upward
movement at the toes) will create strain when walking up
hill, and could create either knee and lower back pain or
neck pain, The specific combination of problems will vary
from patient to patient, as will their symptoms, which may
include corn and callous, hallux valgus (bunion), Morton's
Neuroma, or perhaps just unexplained pain (either when at
rest or during exercise). All of these symptoms will be
used as part of a Bio-mechanical assessment of the patient,
to help the practitioner to pin point the degree and type
of problem. Having found that the patient does indeed have
a bio-mechanical problem, what can be done? The next stage
of the treatment is prescribe an ORTHOTIC.
Orthotics
Orthotics are called many things by many people, such as
orthotic devices, foot appliances, inserts, insole or arch
supports. Although orthotics may resemble old fashioned
arch supports, that is the one thing that a true bio-mechanical
orthotics is NOT. They do not work on the principal of holding
up the arch, but by changing the positions and time sequences
taking place in the various foot segments, so that no one
muscle has to work longer or harder than it should. They
do their job of improving foot function.
Using a biomechanical orthotic may render patients pain
free, and will also help to prevent further deterioration.
Clinicians and researchers throughout the world have established
that if the feet and legs are not in the correct position
at exactly the right time, then abnormalities in gait are
likely to occur. These abnormalities will result in overstrain
and eventually injury to bones, joints, muscles and tendons.
Arthritis is a likely occurrence. Muscles that pull in either
the wrong direction or at the wrong time, due to dysfunction,
will cause tiredness to occur. It has been stated by some
authorities that people suffering from this type of walking
difficulty may use up to 300% more energy to complete a
task as those without.
Are there problems associated with the use of orthotics?
There are very problems when using orthotics. There may
be initial discomfort while the body accustoms itself to
the new position. This may manifest as pains in calves,
buttocks, groin or sometimes the back. The degree will of
course vary from patient to patient, according to the severity
of the problem being treated. However your practitioner
will be monitoring you for this.
Will I need special shoes?
Best results are obtained from a shoe which comes well
up the foot (preferably a lace-up), although improvement
can be obtained in a limited way even in fashion shoes.
Are orthotics expensive?
The treatment is not cheap, but neither is it expensive.
For around the price of a nice out fit, or a gentleman's
2-piece suit you can be assessed and measured, fitted and
checked. Now isn't that worth thinking about the next time
you say " Ooooohh - my feet are killing me."
Bio-mechanic
clinician Amanda J. May