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BASIC SCIENCE OF
handle some heavy pressure.
For example, knees handle a force of three to four times a person’s total
body weight on average when just taking a walk.The force of a
deep knee bend during a squat can increase to nine times the
So just imagine multiplying weight of more than 150 pounds times a minimum
of three or four, and then even more.That can sure add up to a
lot of heavy work on knee joints over time.
Now for the science of this scenario. Where two bones meet, called the
joint, the bone ends are covered with cartilage, also known as
gristle. This cartilage is sturdy,elastic and spongy or
,and keeps the bones from moving against each other at the joint.The cells
of this cartilage, called chondrocytes,are thought to be the
longest living cells of the body.
Surrounding the bones and cartilage is strong, fibrous capsule lined with
synovium,a thin membrane that lubricates the joint area with
fluid.The end result is less friction or smoother rubbing
together of the bones.This fluid also feds the cartilage cells,
keeping them healthy, and is pumped into them during joint
Thus lack of movement (activity / exercise) can be unhealthy.
Other parts of the body features involved with this arthritic scenario
include muscles, tendons, ligaments, bursea and mental activity.
Muscles, attached to bones with tendons and ligaments, move
bones by contracting.
They also cushion movement, absorbing impact or shock. Throughout the muscle
and tendon areas are bursae or sacs filled with fluid.
These also help cushion movement.And throughout all the coordination of
these parts during movement, the brain is a part.
The brain communicates via nerves throughout the body, in particular the
muscles for this scenario, to prepare joints for activity. The
exact science of what actually causes arthritis is still being
researched. For most of the 100-plus forms of arthritis, the
causes are unknown.
Injury, overuse of joints and mechanical issues with joints (like skeletal
abnormalities, worn out joint muscles) can lead to arthritis.
And many point to issues relating to bacteria and germs as some
of the problem. Heredity, stress, drugs, food allergies and
viruses have also been linked to some forms of arthritis. So
have diet, poor circulation and lack of movement.
Arthritic joints can be affected with inflammation when bacteria or a virus
(or other undesirable element) enters the joint area or when an
injury occurs. What happens is when foreign matter enters this
area or the area sustains injury, white blood cells, antibodies
and other natural fighting mechanisms automatically kick in
internally to help.These fighters cause swelling, redness and
heat as the body fluid moves around. Symptoms of inflammation,
one of the uncomfortable issues associated with arthritis, are
redness, swelling and tender joints.
About the author:
Bruce Reid is an Independent Distributor, Selling The Worlds highest
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