Laser Therapy Biological Effects
Laser Therapy Biological Effects
In the diagram above you can see that High Power Laser Therapy (a.k.a. Class IV Laser Therapy) penetrates considerably deeper than a Cold Laser which is also known as Low Level Laser Therapy.
Laser thereapy works by stimutlating production of cellular energy in damaged cells and by enhancing the cell membrane permaeability. This promote the speed and quality of healing , enhances the exchange of nutrients and wastes across the cell membrane improving elasticity of injured tissues. Laser energy is only absorbed by cells that are not functioning properly. The energy “turns on” the mitochodria, which is the powerhouse of the cell. The mitochondria provides the damaged/injured cells with energy they need to start repairing and operating at their optimum performance. Cells that are working fine, aren’t affected by laser energy. It’s just like acupuncture, no side effects, the body takes what it needs and disposes of the rest.
Medical outcomes result from the laser’s ability to “bio-stimulate” tissue growth and repair. This results in accelerated wound healing, as well as a dramatic decrease in pain, inflammation, and scar tissue formation. Unlike all other treatment modalities, laser therapy actually “heals” tissue as well as providing a powerful non-addictive and side-effect free form of pain management. Avicenna’s High Power Laser Therapy (HPLT) gets superior results due to the ability to deliver healing laser energy to the target tissues at any depth and over large surface areas.
HPLT achieves physiologic effects through:
1. Increased growth factor response within cells and tissue as a result of increased ATP and protein synthesis.
2. Increased cell metabolism and tissue growth
3. Accelerated cell reproduction and growth leading to faster repair of damaged tissues
4. Increased metabolic activity – via increase in enzyme outputs, oxygen and nutrient availability.
Laser Therapy Biostimulation – How it works
Biological Effects of Laser Therapy
1. Accelerated Tissue Repair And Cell Growth – accelerate cellular reproduction and growth. No other physical therapy modality can penetrate the bony patella and deliver healing energy to the articular surface between the underside of the patella and the femur. Cells of cartilage, bone, tendons, ligaments and muscles are repaired faster as a result of exposure to laser light.
2. Reduced Fibrous Tissue Formation – Laser therapy reduces the formation of scar tissue following tissue damage and acute and chronic inflammatory processes. This point is paramount because fibrous (scar) tissue is less elastic, has poorer circulation, is more pain sensitive, weaker, and much more prone to re-injury and frequent exacerbation.
3. Anti-Inflammation – Laser light therapy has an anti-inflammatory effect, as it causes vasodilation and activation of the lymphatic drainage system. As a result, there is a reduction in swelling caused by biomechanical stress, trauma, overuse, or systemic conditions.
4. Analgesia – Laser therapy has a beneficial effect on pain through the suppression of nerve signal transmission over unmyelinated c-fibers that transmit pain to the brain. This means that a greater amount of stimuli is required to create an action potential within the nerve to signal pain. Another pain blocking mechanism involves the production of high levels of pain killing chemicals such as endorphins and enkephalins from the brain and adrenal gland.
5. Improved Vascular Activity – Laser light will significantly increase the formation of new capillaries (angiogenesis) in damaged tissue that will speed up the healing process. Additionally, it has been noted in the literature that microcirculation increases secondary to vasodilation during laser treatment.
6. Increased Metabolic Activity – Laser therapy creates higher outputs of specific enzymes
7. Improved Nerve Function – accelerates the process of nerve cell regeneration and increases the amplitude of action potentials
8. Immunoregulation – stimulation of immunoglobulins and lymphocytes
9. Stimulates Trigger Points and Acupuncture Points – stimulates muscle trigger points, restoration of muscular tonus and balance