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Types of Therapeutic Currents - Coggle Diagram
Types of Therapeutic Currents
Medium Frequency Currents
3000Hz - 6000Hz
Low Frequency Currents
1Hz - 2000Hz
Short duration
interrupted direct currents
pulse duration -of
0.02ms to 1ms
stimulate normally
innervated
muscles.
Long duration
interrupted direct currents
pulse duration
10ms to 2000ms
stimulation of
partly
or
completely denervated
muscle.
1.Faradism
Tetanic currents which have a
pulse duration of 1ms and a
frequency of 50 Hz.
2.Faradic current
an
uneven alternating current
with
each cycle
consisting of
2 unequal phases
Faradic current is a short duration interrupted direct current with a pulse duration ranging from 0.1 to 1 ms with a frequency of 50 to 100 Hz.
Faradic current is surged to produce tetanic contraction and relaxation of the muscle. Treatment with faradic current also known as faradism
3.Faradic type current
surged modular pulsed currents
with a
range of
pulse durations
from
0.02 ms to 1 ms
and a
frequency
of from
50 to 100 Hz.
4.Direct current
(Galvanism- constant current)
is a
unidirectional flow
of electrons through a
conductor.
definitions
cathode
is the
negative pole
or electrode of any electrical device
anode
is the
positive pole
of an electrical device.
Anion
is an ion carrying a
negative
charge
Cation
is an
ion
carrying a
positive
charge
functional electrical stimulation parameters
pulse width
pulse amplitude
stimulation frequency
types of faradic currents
unmodified current
current in surges
surges varying in duration
varying interval between the surges
1 more item...
Physiological effects of Faradic type
current
Stimulation of sensory nerves
Stimulation of motor nerves
Effects of muscle contraction
Stimulation of denervated muscles
Chemical effects
Indications for use of Faradic type
current
Facilitation of muscle contraction
Re-education of muscle-action
Training a new muscle action
Neuropraxia of a motor nerve
Severed motor nerve
Improved venous and lymphatic drainage
Prevention and loosening of adhesions
High Frequency Currents
500000Hz & above