Overview: Interferential therapy (IFT) is a form of electrical stimulation therapy that builds upon the principles of Transcutaneous Electrical Nerve Stimulation (TENS). Unlike TENS, which uses a single low-frequency current, IFT employs two medium-frequency currents that intersect to create therapeutic low-frequency stimulation at the targeted tissue. Studies suggest this method may provide deeper and more effective pain relief compared to traditional TENS.
How It Works: Interferential therapy works by stimulating nerves to reduce pain, decrease muscle spasms, and lower inflammation levels. It enhances tissue healing by improving blood flow and oxygenation to the affected area, supporting recovery in both acute and chronic conditions. The intersecting currents create a unique interference pattern, allowing for selective stimulation of deeper tissues while minimizing discomfort at the skin level.

Procedure: During treatment, four electrode pads are strategically placed around the affected area. The electrical currents are adjusted to target either superficial or deeper structures, depending on the condition and treatment goals. Each session typically lasts 15–30 minutes and is often administered weekly as part of a comprehensive pain management plan.  

Conditions Treated: Interferential therapy is particularly effective for managing musculoskeletal conditions, including joint pain, muscle strains, and inflammatory issues. It is also used to alleviate both acute and chronic pain, providing a non-invasive, drug-free alternative for pain relief. Research indicates that IFT may be beneficial for conditions such as osteoarthritis, lower back pain, and postoperative recovery.