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The effect of the chiropractic adjustment.
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Chiropractic treatment does not only involve spinal manipulation, far from it. Although the principal
treatment is joint adjustment or manipulation. We are trained in many different techniques, which enables us to select a treatment
method that is suitable for you, making the treatment safe and effective for all ages. You can read more about what
chiropractic treatment entails here. The following information describes why the use of
manipulation or adjustments is an important skill to have when treating muscle, joint and nerve problems. Do
not feel disappointed if your Chiropractor tells you your bone is not 'out of place'. Describing
the very first Chiropractic adjustment in 1895 the founder of Chiropractic, Daniel D. Palmer, wrote "I replaced the displaced
fourth dorsal vertebra by one move". The way he set about this manoeuvre on the vertebra was also described. Palmer "racked
it into position by using the spinous process as a lever". He emphasised that this was not haphazard, "there was
nothing crude about this adjustment; it was specific". Palmer's adjustment was devised to move a vertebra back into alignment
in a very specific and precise manner and relied on applying pressure directly onto the vertebra. Early Chiropractic was built
up on the premise that displaced spinal bones pressed on nerves causing pain elsewhere in the body and disease of the organs
the nerves supplied. It was thought that bones quite readily moved "out of place" and that the adjustment created
a cracking sound as it "popped them back in". In fact, modern scientific understanding has shown us that this isn't
quite the whole story. How Joints Misalign or Lock Up The function
of a joint is to move two bones in relation to each other under muscular action. The muscles act, when they receive impulses,
through nerves that arise in the spinal cord. The vertebral joints are like most other joints in that they move within defined
limits according to muscle activity that is controlled by nerves leaving the spinal cord. Very often injury, postural strains
or other factors can irritate sensitive joint capsules that retain the lubricant that bathes the joint. A protective response
is triggered that sends messages to muscles that control the joint, causing them to contract. The effect is to limit movement
that might provoke more pain. This mechanism can also be triggered by injury or strain to other parts of the vertebral joint,
such as its ligaments, disc, nerve, bone and even its own muscles. So any strain or injury to the joint or its associated
structures may cause a muscle contraction that locks the joint either wholly or partially. That locking can occur with the
joint in its neutral "aligned" position or, if muscles selectively contract, out of its neutral position, so the
bones appear "out of alignment". The mechanism serves a purpose whilst the injured tissue is healing by acting as
nature's own joint splint. Anyone who cuts a finger knows how rapidly the tissues heal, become pliable again and return to
full function. Unfortunately the spinal splinting mechanism can sometimes go wrong and perpetuate itself long beyond the time
needed to repair the damaged tissue. The contracting muscle can be so over effective that it compresses its own blood supply,
releasing acids that build up and trigger nerve endings into sensing pain, inducing a further protective spasm. A vicious
cycle has been completed. In such an area one ligament might be held in stretch whilst that on the opposite side remains slack.
In time they will respond by lengthening and shortening respectively to balance the forces upon them, perpetuating the "misaligned"
appearance. If a set of joints in a region locks up then its neighbors must compensate by increasing their own movement. As
they increase their range they become less stable and themselves run the risk of strain or premature wear and tear, "osteoarthritis".
A whole region can slowly get stiffer and stiffer in the process so that bending the low back or reversing the car becomes
a problem. The process can proceed unnoticed over months or even years until the over flexible area is injured and become
painful.
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What the Adjustment Does When the Chiropractor adjusts a joint he must first
take up all the "slack" in the joint so as to control the movement perfectly. There the patient must contribute
by relaxing completely to minimise any discomfort. The Chiropractor aims to induce a split-second stretch to the joint capsule
and associated muscles and tissue fibers. By taking up the slack the joint is opened as far as it can voluntarily go, a point
referred to by Chiropractors as the "elastic barrier or resistance". There is still ample room for the joint to
move within its anatomical range, but if the movement is a slow stretch it triggers a natural resistance from the tissues
of the joint. The speed of the Chiropractic adjustment is such that joint tissue resistance is not triggered and the elastic
barrier is overcome, often producing a joint "crack". The main effect of the rapid stretch is a neurological response,
which creates a wave of relaxation within the joint tissues, thereby restoring mobility. In cases where ligaments have physically
shortened, the joint will tend to stiffen up again, although usually not to the same extent as before the adjustment. In time,
with repeated adjustment at regular intervals, short ligaments will lengthen again, restoring full function to the joint.
It was once thought that the bones made the joint-crack as they "popped back into place". Another theory was that
the noise came from ligaments as they slapped tissues on being fully stretched. In the late Sixties researchers at Leeds University
showed that the pop occurred within the fluids of the joint capsule. The sudden vacuum caused by stretching the joint brings
gases out of the fluids in the form of tiny bubbles (anyone who saves wine from oxidation by using a bottle pump will notice
how bubbles form in the wine if too much air is extracted). As the vacuum increases within the joint fluids, the bubbles come
together until they form one sizeable bubble. The next phase occurs as the bubble bursts with a "pop". All this
happens painlessly in a fraction of a split second. Although it is an indication that a joint has been adjusted, the "crack"
is not essential to the success of the adjustment, as it is the rapid stretch and not the bursting bubble that induces tissue
relaxation and increased mobility. Indeed, Chiropractors have devised numerous methods over the years for restoring full mobility,
not all of which require the mediation of the classic Chiropractic adjustment. There are instances when the adjustment is
not called for, as Daniel Palmer's son, "B.J.", recognised when he wrote: "It is more important to know when
not to adjust than when to adjust". In such cases Chiropractors will use some of their "non-force" techniques
to restore movement and function to a faulty joint. Do not feel disappointed if your Chiropractor tells
you your bone is not "out of place". Excruciating pain can still be caused by locked joints, which are technically
still in alignment. If you do not hear your joints go "crack" when they are treated do not feel cheated. The quickest
way to full function and painless relief may sometimes be a silent one.
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Dr. Jeffrey G. Draesel Jr. - Chiropractic Physician
Inner Strength Chiropractic & Rehab • 1108 Kane Concourse #300-B • Bay Harbor Islands, FL • 33154
• Phone 305.866.3780 • Fax 305.868.3124
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