Skeletal muscles are a composition of fibers innervated by nerves. Nerve impulses pass through a neuromuscular junction into the muscle fiber. The nerve impulses, or currents, continue through the muscle fiber to stimulate the “action potential”, triggering a large release of calcium. This initiates the contraction process. The contraction continues as the muscle cell’s increased permeability allows sodium ions to enter the cell, and the intracellular negativity is reinstated.
Energy for this process comes from the nucleotide compound ATP (Adenosine Triphosphate) being reduced to ADP (Adenosine Diphosphate). Large amounts of ATP are used up during contraction and must constantly be replenished.
When a muscle is traumatized, it protects itself by going into spasm. This decreases blood supply, nutrients, oxygen, and ATP, disrupts the sodium pump, and increases waste products within the cell. The electrical current of injured tissue takes on a positive charge rather than negative charge. Non-injured cells try to restore normal electrical functions, but the body’s electrical system is subject to the natural law of electricity which dictates: “electricity must take the path of least resistance”, and travels around the injured tissue.
With the addition of external microstimulation, the damaged tissue recovery period is drastically reduced.
Tissue pathology begins with injured or otherwise insulted cells that exude certain biochemical substances, such as arachidonic acid, from the lipid portion of the cell membrane into their interstitial environment. These substances are responsible for turning on a complex array of inflammatory and pain - producing responses. The best way to accelerate relief from these responses is to accelerate the intracellular processes that result in the repair or replacement of the injured cells themselves. This involves accelerating the production of ATP (primary conveyor of energy within the cell), new proteins, and new DNA (if new cells must be created). The calcium concentration within the cells is known to play a very important role in activating a variety of enzymes which turn on the above processes. It has been shown that passing electrical current across the membrane of tissue cells
(such as fibroblasts, which form new tissue in healing wound) in an optimal fashion will do a remarkably effective job of opening certain membrane channels to calcium ions
. Calcium ions will then proceed to enter the cell from interstitial fluid (where they are more concentrated) and increase their concentration within the cell.
Microcurrent therapy, commonly referred as MENS (Microcurrent Electrical Neuromuscular Stimulation), is extremely small pulsating currents of electricity. These currents are finely tuned to the level of the normal electrical exchanges which take place at body’s cellular level. These currents being more biologically compatible than any other electrical stimulation device, have the ability to penetrate the cell - as opposed to passing over the cell as other stimulation devices do. It works on the ARNDT - SCHULTZ Law which states, “Weak stimuli increases physiological activity and very strong stimuli inhibit or abolish activity.”
This sub sensory current normalizes the ordinary activity taking place within the cell if it has been injured or otherwise compromised. The external addition of microcurrent increases the production of ATP, protein synthesis, oxygenation, ion exchange, absorption of nutrients, elimination of waste products, and neutralizes the oscillating polarity of deficient cells. Homeostasis is restored.
By normalizing cell activity, inflammation is reduced while collagen-producing cells are increased. Healthy cell metabolism creates a healthy, pain-free internal environment.
Internal exchanges within the body have been long understood by medical practitioners. Applying that knowledge has been slow in developing. Doctors and physical therapists all over the world have been using microcurrent to heal injured muscles, tendons, wounds and a myriad of injuries and ailments for the past fifteen years.
Electrical stimulation of tissue also results in improved circulation
by several mechanisms, which may include a local release of vasodilator substances and a decrease in sympathetic vasoconstrictor reflex activity. This can result in:
- Reduced pain at injury site
- Improved neuromuscular responsiveness
- Reduction of inflammatory responses
- Increased range of motion and reduction of tightness in disturbed muscle tissue
- Reduced recuperation time and less neuromuscular inhibition leading to enhanced contractility of muscle fibers.