Gima UTC2, Инструкция по эксплуатации

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MA531_EN EN 12
UTC2
Excitative-motor Effect
The aim of the electro-stimulation is to get a muscular contraction applying, such electric currents, above or close to the
muscle.
Obviously the type of used current depends by the therapeutic program and by the characteristics of the muscle to treat.
Faradic Currents
The working can be described as follow: The muscle, or a group of muscles, under the effect of a potential of action
caused by the electric impulse, contracts. To this principal effect there is another added effect, caused by the increase of
treated tissues temperature due to a diathermic mechanism (Joule effect), that produces a vasodilatative effect.
The faradic current is characterized by the rectangular wave form and, generally, with impulse duration in the range from
0.1 to 1 ms and repetition frequency from 1 to 200 Hz ( the lower frequencies in the range to obtain an excitative-motor
effect and the higher frequencies to obtain a vasodilatative effect).
Thanks to the frequency characteristics and pulse duration, the faradic current is able to produce tetanic contractions and
relaxations lasting 15 – 35 msec.
Faradic current is usually used for stimulation of normally innervated muscles.
The current level has set depending from the patient endurableness.
The negative electrode has fixed on the motor point, and the positive to a point close to it .
The daily treatments last 10 -20 minutes.
Rectangular currents
This currents are usually used for the muscular reinforcement, the prevention and the treatment of the muscular hypo
trophy. Generally they are used in the rehabilitative and sport medicine,
Rectangular currents with different frequency are usually used in sequence. The treatment is divided in three phases:
phase of preparation: by stimulating the muscles with low frequency (5-30 Hz) current
phase of work: by stimulating the muscles with high frequencies (40 – 150 Hz) alternating the tetanic contractions time
with rest time lasting twice the contraction time. During this phase it is important to start with low current level and increase
it to obtain the stimulation of a greater number of muscular fibers.
Phase of short run: again low frequency muscles stimulation.
Treatments have usually three weekly sittings with a session time that varies from 20 minutes to some hours.
The two electrodes are positioned: one close to the motor roof plate of the muscle and the other one to the opposite ex-
tremity of the same muscle.
Bipolar currents
Among the sinusoidal currents the most used are the Kotz currents, that have lots of sinusoidal waves at mean frequency
(2500 Hz) that can be compared to the faradic current measured with train impulses, but more endurable by the patient.
The time of stimulation varies from 2 to 20 seconds, spaced out times of non-stimulation from 4 to 60 seconds.
The positioning is similar to that of biphasic rectangular current.
It is usually used for the stimulation of a normally innervated muscle.