Interferential Mode - Acticare TSE User Manual

Interferential Mode

Clinical Applications
The four main clinical applications for which
interferential therapy is commonly used are:
pain relief, muscle stimulation, increase of
blood flow and reduction of oedema.
Pain Relief
An Amplitude Modulation Frequency (AMF) in
the range of 100-200Hz is generally accepted
to stimulate the pain gate mechanisms,
thereby masking pain symptoms. Stimulation
with lower AMF (1-10Hz) is used to activate
opoid mechanisms. Relief of pain may also be
achieved by blocking C fibre transmission at
5
AMF higher than 50Hz.
Muscle Stimulation
Stimulation of the motor nerves is possible
with a range of AMF. Stimulation at low
frequency (e.g. 1Hz) results in repeated short
contractions, while stimulation at 50Hz will
result in a sustained tetanic contraction. Mild
stimulation below that of sustained tetanic
contraction, with a sweep of 0-25Hz, has been
observed to provide a combination of muscle
stimulation, increase in blood flow and
reduction in oedema.
Programs Available (AMF= Amplitude Modulation Frequency)
Name Carrier
PROG1 4kHz
PROG2 4kHz
PROG3 4kHz
PROG4 4kHz
PROG5 4kHz
PROG6 4kHz
PROG7 2kHz
PROG8 2kHz
VAR 2kHz or 4kHz
Base AMF Peak AMF
0 10
0 25
0 100
10 150
50 200
100 150
0 10
0 25
0Hz to 250Hz 0Hz to 250Hz
9
Therapy Modes
Acticare IC provides two channels of pre-
modulated (two-pole) Interferential Current.
The electronic pre-modulation ensures 100%
modulation across the treatment zone. There
is no quadripolar (four-pole) mode, although
four electrodes can be employed to cover a
large area with the pre-modulated waveform.
Available modes include eight preset
programs plus one fully user programmable
mode as summarised in the table below.
Maximum output is 100mA peak current
(70mA RMS) shared between the two
channels.
For guidance on the use of interferential
therapy consult www.electrotherapy.org.
Typical Interferential Waveform
100
50
0
-50
-100
Pattern Typical Application
6^6 Chronic Pain
6^6 Muscle Stimulation
6^6 Increased Circulation
6^6 Acute & Chronic Pain
6^6 Acute Pain
6^6 Acute Pain
6^6 Muscle Stimulation
6^6 Muscle Stimulation
1/1 6/6 6^6
Time [2.5mS/div]