Microcurrents known also as the microamper stimulation, have got very small intensity measured in uA with the ranges between 1 – 999uA. Their effect can be explained by the Arndt – Schulz law.
Parameters and course type
Microamper stimulation (in literature we can also find abbreviation MES) is a therapy where currents have got very small intensity measured in uA with the ranges between 1 – 999uA. In comparison with other methods here are used stimuli below the threshold of feeling. Microcurrents are not felt by the patient.
Current shape is rectangular with a so-called overshoot with amplitude equal to the rectangle amplitude. Due to the operation characteristics of some available devices there is a possibility of shape modification, which retain and often extend the impact on the human body. We may differentiate 3 types (modifications) of microcurrents:
- positive
- negative
- alternating
As to the physical parameters:
- pulse duration can be set between 1-500ms
- pulse frequency can be adjusted in the range from 0.3 Hz to 500 Hz
- spectrum can be determined between 0 Hz – 500 Hz
- spectrum can be varied according to the set FM program (frequency modulation)
Effect and application
The basis of the biological impact of such low intensities is the Arndt – Schulz law. According to this principle, weak pulses enhance physiological processes, while strong ones inhibit them. Microcurrents are an example of the weak interaction. One of the theories about microcurrent application is based on the statement that the disease processes decrease the electrical potential of the cells. Local “hole” for charges appears. The current of injury with a value of 10 – 30uA flows into injured cells. This current has been measured by scientists. The current flow causes tissue regeneration. By introducing the current from outside we increase the body’s natural repair processes.
Scientific experiments have confirmed that microcurrent therapy increase:
- production of ATP
- protein synthesis
- transport of amino acids
In connection with the above phenomena microcurrents:
- accelerate the regeneration of soft tissue
- have an analgesic effect
- accelerate bone union
Method of performing treatment
It is recommended to apply bipolar microcurrents to avoid side effects related to the influence of direct current (under the electrodes). The negative electrode of unipolar microcurrents have a disinfecting effect (attracts macrophages). The positive electrode has an analgesic effect. The conclusion is that during the treatment sessions in order to heal the wound it is recommended to start with the negative electrode, and after wound healing to apply the positive electrode on a scar. Frequency modulation in microcurrent therapy is dedicated for scanning in order to fit the resonance of cells, tissues and glands, which accelerates healing processes.
