Interferential Therapy

Interferential Therapy (IFT) is traditionally described as a low frequency current treatment that uses two medium frequency currents which `interfere' with one another to produce a beat frequency that the body recognises as a low frequency energy source. The range of this beat frequency is usually 1–250Hz.

Medium–frequency currents alternate at 1000–100 000Hz. Interferential therapy is the use of two medium–frequency currents around 4000 Hz to produce a low–frequency effect within the body without the problem of high skin resistance. Low–frequency is required to high skin resistance, require a high intensity to achieve the desired effect and this causes marked sensory stimulation to the part. Medium–frequency causes low skin resistance, require a low intensity to achieve the desired effect, which in less sensory discomfort. High–frequency currents, such as short–wave diathermy and microwave, have frequencies too high to stimulate skin on muscle and produce only thermal effects.

In interferential equipment one frequency is fixed at 4000 Hz (generated by one pair of electrodes) and the other is variable between 4000 Hz and 4200 Hz (second pair of electrodes). By selecting the variable frequency, a beat frequency between 0 and 200 Hz may be generated.

Interferential Therapy is an analogue Interferential stimulation device that is used for symptomatic relief and management of post surgical and posttraumatic acute and chronic pain. The Interferential Electrical Current Therapy is largely used in all leading hospitals due to its superior quality and durability. We are among the key Electro-Interferential Therapy Exporters.

Features :

• Pain relief–Pain of sympathetic origin such as causalgia, neuralgia, pain from herpes zoster, amputation–stump complications and recent injuries.
• Swelling–Interferential aids absorption of exudates particularly for Haematoma.
• Stress incontinence–The muscle stimulating frequencies aid weak pelvic floor muscles.
• Back pain or disc lesions–Interferential therapy is useful for relief of acute back pain where the pain is localized to the back or referred down a lower limb.
• Sudeck’s atrophy–This responds to interferential when other modalities have failed but treatment may need to be prolonged.
• Ligamentous and muscle injuries–Interferential can be given in acute or chronic conditions to relieve pain, promote healing and restore function. Treatment can be given with strapping in place.