9
•
Temperature & Relative Humidity of storage: -25°C–+70°C, 10%--93% R.H.
•
Temperature & Relative Humidity of transportation: -25°C–+70°C, 10%--93% R.H.
3.0
IFT: What It Is and How It Works
Many users will be familiar with TENS, which delivers intermittent pulses to stimulate
surface nerves and block the pain signal. Unlike TENS, Interferential Therapy delivers a
continuous stimulation deep into the affected tissue.
IFT achieves this deep penetration by using a 4000 Hz carrier wave to overcome the
skin impedance. TENS signals travel around the top 1cm of the skin surface. IFT signals
travel almost directly between the electrodes.
Interferential Therapy uses two medium frequency 4000 Hz currents that ‘interfere’ with
each other to produce a
beat frequency
that the body recognises as a low frequency
energy source.
10Hz
12Hz