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TENS therapy for plantar fasciitisTENS therapy, which stands for “Transcutaneous Electrical Nerve Stimulation,” uses low-frequency electrical current to stimulate the plantar fascia, with the goal of improving blood flow and blocking the body’s pain signals.

While this therapy is more costly than other conservative, noninvasive methods for treating plantar fasciitis at home (simplified options are closer to $50, while higher-end products fall in the neighborhood of $250), some of the cost may be covered by your insurance! TENS therapy is also far less expensive and risky than surgery or other medical interventions.

Here’s what you should know about TENS therapy before you give it a try for foot pain!

TENS Therapy and Foot Pain

TENS therapy works by attaching electrodes to the feet (and sometimes calves) that deliver very small pulses of electrical current. This current causes the muscles in the feet and legs to contract and release at intervals, which is designed to improve blood flow as well as interrupt the body’s signals for pain. You’ll feel a gentle pulsing sensation, as well as some vibration in the soles of your feet while the device is working. Some TENS devices look like a pair of sandals that you slip onto your feet, others look like a cell phone with electrodes attached, while still others look like a small platform that you place your feet onto.

TENS Unit for Plantar Fasciitis

There’s a lot of anecdotal evidence that TENS therapy helps reduce inflammation, reduces stiffness and pain to the plantar fascia, and reduces pain while walking and other physical activity. However, it’s important to understand that TENS therapy is not intended to be a cure for plantar fasciitis–but rather a pain-reduction method.

Does TENS Therapy Work?

The number one question on everyone’s mind is, of course, does TENS therapy work? While the answer isn’t as conclusive as you might like, there’s still good news: One major study, which separated plantar fasciitis sufferers into two groups (one that only used stretching and orthotics, and one that used stretching, orthotics, and low-frequency electrical stimulation therapy) found that both groups reported significantly less morning pain and overall symptoms of plantar fasciitis. In other words, if you want to give TENS therapy a try, you can feel confident that, as long as you combine this therapy with tried and true treatments like orthoses and stretching, you’ll be setting yourself up for success.

Many companies offer a money-back guarantee, so you can try before you fully commit to the investment of TENS therapy in many cases. Make sure to read warranty and guarantee information carefully before purchasing.

TENS vs ESWT

While TENS therapy and ESWT therapy (extracorporeal shock wave therapy) might seem similar, since they both use electrical currents, the two procedures are different in several ways. ESWT is far more expensive (nearly $1000 before insurance in many cases), and must be done by a licensed professional in a doctor’s office. It’s also more painful, and can cause intense discomfort, redness, and swelling.

Like TENS therapy, ESWT hasn’t been proven, and studies of its effectiveness and limited and mixed. For many people TENS therapy is a cost-effective, at-home way of experimenting with the results of electrical current on their plantar fasciitis.

Is TENS Therapy Safe?

TENS therapy can be done at home with a portable unit, has minimal risks, and is considered very safe. As with all forms of muscle work, make sure to keep yourself hydrated while using TENS therapy, to avoid fatigue and any buildup of toxins that may be released during muscle stimulation.

It’s also important to pace yourself while using TENS therapy. Some people have reported muscle tightness and discomfort after prolonged periods of use, or if the setting is too high. Work up to longer sessions gradually, and avoid using TENS therapy for long periods of time.

Since TENS therapy uses electrical current, you shouldn’t use it if you have a pacemaker. If you’re pregnant or have other medical complications, make sure to consult your doctor before starting TENS therapy.

Whether you choose to give TENS therapy a try, or not, remember that 90% of plantar fasciitis cases can be resolved with a little time and consistent, conservative treatment. Along with any pain-reduction methods you try, make sure to use tried and true orthotics for plantar fasciitis, stretching, and icing to address the root cause of your foot pain. Here’s to the health of your feet!

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