Motor unit type
Tonic ST
Phasic FT
Phasic FTb
To bring a tissue from rest to excitation with an induced electric stimulation
(electrostimulator pulse), some conditions are necessary:
- The current amount
- The stimulation duration, which must be suited for the body part to be
stimulated
On this basis, for tissue excitation, the relationship between the duration
and the intensity of the stimulation is particularly important, not only the
peak value of the intensity
This relationship changes for all the different muscles.
Recommended intensity
The intensity value required to trigger contraction depends on patients,
electrode placement, adipose tissue, perspiration, possible hairs on the
treatment surface etc. Therefore, the same current intensity may give
different sensations to different people, in different days or body sides. It
is advisable to regulate the intensity during the same session to contrast
accommodation, in order to obtain the same contraction.
The current intensity for the different phases is suggested with an
approximate value and can be modified based on individual sensations.
- Moderate: the muscle is never tired, even in long treatments. The
contraction is absolutely bearable and agreeable. First level of the
intensity graph.
- Intermediate: the muscle is visibly contracted but does not provoke any
joint movement. Second level in the intensity graph.
- High: the muscle undergoes a considerable contraction. Muscle
contraction would extend or bend the limb if it were not blocked. Third
level in the intensity graph.
- Maximal: the muscle undergoes a maximal contraction. This is a
demanding process that should be performed only after several
applications.
Moderate
from 10mA to 20mA
Intermediate
from 20mA to 30mA
HIgh
above 30mA
Maximal
On the verge of the tolerance limit, always under
the threshold of pain.
54
Contraction type
slow contraction I
fast contraction II
fast contraction II b
Contraction frequency
0 - 50 Hz
50 - 70 Hz
80 - 120 Hz
Rev. 03 Multi_06_2018