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KNOWN BIOLOGICAL EFFECTS OF LASER
THERAPY- (LT)
Clinical studies and trials
of laser therapy technology indicate the following beneficial effects of laser
light therapy on tissues and cells:
1. Accelerated Tissue Repair And Cell Growth. Photons
of light from lasers penetrate deeply into tissue and accelerate cellular
reproduction and growth. The laser light increases the energy available to the
cell so that the cell can take on nutrients faster and get rid of waste
products. As a result of exposure to laser light, the cells of tendons,
ligaments and muscles are repaired faster.
2. Faster Wound Healing. Laser light stimulates fibroblast
development (fibroblasts are the building blocks of collagen, which is
predominant in wound healing) in damaged tissue. Collagen is the essential
protein required to replace old tissue or to repair tissue injuries. As a
result, LT is effective on open wounds and burns.
3. Reduced Fibrous Tissue Formation. LT reduces the formation
of scar tissue following tissue damage from cuts, scratches, burns or surgery.
4. Anti-Inflammation. Laser light therapy has an anti-edemic
effect as it causes vasodilation, but also because it activates the lymphatic
drainage system (drains swollen areas). As a result, there is a reduction in
swelling caused by bruising or inflammation.
5. Anti-Pain (Analgesic). Laser therapy has a high beneficial
effect on nerve cells which block pain transmitted by these cells to the brain
and which decreases nerve sensitivity. Also, due to less inflammation, there is
less edema and less pain. Another pain blocking mechanism involves the
production of high levels of pain killing chemicals such as endorphins and
enkephlins from the brain and adrenal gland.
6. Improved Vascular Activity. Laser light will significantly increase
the formation of new capillaries in damaged tissue that speeds up the healing
process, closes wounds quickly and reduces scar tissue. Additional benefits
include acceleration of angiogenesis, which causes temporary vasodilatation, an
increase in the diameter of blood vessels.
7. Increased Metabolic Activity. Laser therapy creates higher
outputs of specific enzymes, greater oxygen and food particle loads for blood
cells.
8. Improved Nerve Function. Slow recovery of nerve functions
in damaged tissue can result in numbness and impaired limbs. Laser light will
speed up the process of nerve cell reconnection and increase the amplitude of
action potentials to optimize muscle action.
9. Immunoregulation. Laser light has a direct effect
on immunity status by stimulation of immunoglobines and lymphocytes. LT is
absorbed by chromophones (molecule enzymes) that react to laser light. The
enzyme flavomono-nucleotide is activated and starts the production of ATP
(adenosine-tri-phosphate), which is the major carrier of cell energy and the
energy source for all chemical reactions in the cells.
10. Trigger Points and
Acupuncture Points. Laser therapy stimulates muscle trigger points and
acupuncture points on a non-invasive basis providing musculoskeletal pain
relief.
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