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IMPGA 3000
Interpolar effects
The galvanic current in its constant state produces, as well as the effects on
the application area, the polar effects, other effects while going through the
application electrodes. These are called interpolar, and the most important
among them are a peripheral and trophic vasomotor action. The passing of
direct current through the tissues provokes a light reddening that can persist a
few hours after its application.
This reddening is the result of an increase in the superficial circulation and can
last from 10 minutes to over an hour following the application, and becomes
apparent through the reddening of the area in which the electrodes were
applied.
When going through an area with an altered and delayed circulation, the
galvanic current reduces this circulatory trouble by helping to absorb the
swelling. We can also observe an improvement of the general circulation and a
decrease in the blood pressure and a normalisation of the pulse if the latter
was altered.
Effects of the galvanic current
Physical and chemical effects of galvanic current are of two types. The
chemical reaction in the electrodes called electrolysis is called polar effect. The
physical movement of the ions in the organism is an interpolar effect.
Action on the peripheral nervous system
Direct current flow usually goes with a feeling of tingling, itch and heat under
the electrodes, that seems to be more pronounced under the negative pole,
which seems to have an irritating action. As the current passes, these
sensations lessen and disappear.
In addition, the galvanic current has an evident antalgic action on painful
states of neuralgia and neuritis. This very efficient analgesic action becomes
apparent mainly when the electrode covering the painful area is connected to
the positive pole. A painful nerve seems to have an excess of negative
electrical charge, which explains the sedative action of this method, which
attracts these negative charges and discharge the sore nerve.
The sensitivity to the current is specific to each subject, so much so that the
responses to the current do not have an absolute value. Great differences can
be observed in the intensities required for each treatment.
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