The comparative effect of two types of electrode placement for acupuncture-like TENS on pain relief in patients with chronic neck pain
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Abstract
Background: Although the use of acupuncture-like transcutaneous electrical nerve stimulation (AL-TENS) has been applied for chronic neck pain alleviation, there is a lack of evidence regarding the effects of the electrode placements applied on the acupoints in individuals with chronic neck pain.
Objective: This study aimed to compare the effects of two AL-TENS electrode placements, over the painful area and the acupoints in individuals with chronic neck pain.
Method: Twenty-four participants with chronic neck pain were randomly assigned to three groups: AL-TENS group with electrode placement over painful area, the Acupoint-TENS group with electrode placement over acupoints (GB20, GB21, SI14, SI15), and the placebo group in which the electrodes were placed over acupoints like the Acupoint-TENS group but no stimulation. All groups received 7 treatment sessions of either 30 minutes of AL-TENS or 30 minutes of placebo stimulation. Pain intensity was measured using the Visual Analog Scale (VAS) at the pre- and post-treatment, and the two-week follow-up session.
Result: The AL-TENS group showed a significant reduction in VAS at the post-treatment and the two-week follow-up compared to the placebo group. The acupoint-TENS group also showed significant reduction in VAS at the two-week follow-up compared to the placebo group. However, there was no significant difference in VAS between the AL-TENS and Acupoint-TENS groups at pre- and post-treatment, and at the two-week follow-up.
Conclusion: The AL-TENS with electrode placement on the acupoints as well as the painful area could be applied as pain relief for individuals with chronic neck pain.
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References
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