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Passive Care Research
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Interferential Therapy & TENS -
Pain Control
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1. Johnson M, Tabasam G. A double blind placebo controlled investigation into the analgesic effects of inferential currents (IFC) and transcutaneous electrical nerve stimulation (TENS) on cold-induced pain in healthy subjects. Physiotherapy Theory and Practice (1999) 15, 217-233
Transcutaneous Electrical Nerve Stimulation (TENS) and Interferential Currents (IFC) are used for the management of painful conditions.
The aim of this study was to compare the pain relieving effects of TENS and IFC on cold-induced pain in healthy volunteers.
Twenty one subjects completed six cycles of the cold-induced pain test.
During each cycle pain threshold was recorded as the time from immersion of the subject's hand in cold water to the first sensation of pain and pain intensity and unpleasantness ratings were recorded using visual analogue scales.
The results of this study found that IFC and TENS significantly elevated the amount of stimulus required to produce a sensation of pain.
2. McManusa, FJ et al. The analgesic effects of interferential therapy on two experimental pain models: cold and mechanically induced pain. Physiotherapy 92 (2006) 95-102
This study was performed to measure the pain relieving effects of interferential therapy (IFT).
The results of this study demonstrated that IFT produced similar effects on the threshold (first sensation of pain) for both cold and mechanical pain.
The thresholds were significantly increased and the percentage changes in both were similar.
This study suggests that IFT can affect pain from a range of origins.
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