Due to a lack of high-quality research and clinical trials, researchers have not yet determined whether TENS is a reliable treatment for pain relief.
While there is a lack of strong clinical evidence for its effectiveness, TENS is a low-risk pain relief option for many people.
Several factors may influence the effectiveness of TENS:
A person who develops tolerance will no longer feel the same level of pain relief that they did when they first used the unit.
To prevent this from occurring, people can alternate between LF and HF TENS within each treatment session.
Alternatively, they can gradually increase the intensity or duration of TENS on a daily basis.
The range of intensities of the electrical stimulation may account for some of the differences in research findings.
According to a
Given that HF TENS is a more effective pain reliever, experts recommend that people apply the highest-intensity TENS that they can tolerate.
TENS may be more effective if people place the electrodes on acupuncture points.
Acupuncture is a practice that uses needles to stimulate the nerves beneath the skin at specific locations known as acupuncture points. Experts believe that this assists the body in producing endorphins.