Journal of Alternative Complementary & Integrative Medicine Category: Medicine Type: Research Article
Microcurrent Point Stimulation Applied to Acupuncture Points for the Treatment of Non-Specific Lower Back Pain
- Antoine Chevalier1*, Kelly Armstrong2, Raman Gokal3
- 1 University Of Natural Health, IN And NIH, Bethesda, MD, USA; 21010 South Bank St, #5050, Sterling, VA 20165, United States
- 2 University Of Natural Health, IN And NIH, Bethesda, MD, United States
- 3 Department Of Medicine, Royal Infirmary, University Of Manchester, Manchester, United Kingdom
*Corresponding Author:Antoine Chevalier
University Of Natural Health, IN And NIH, Bethesda, MD, USA; 21010 South Bank St, #5050, Sterling, VA 20165, United States
Received Date: Oct 15, 2016 Accepted Date: Nov 22, 2016 Published Date: Dec 07, 2016
Although acupuncture and microcurrent are widely used for chronic pain, there remains considerable controversy as to their therapeutic value. We aimed to determine in an observational study the effect size of DC Microcurrent Point Stimulation (MPS) applied to acupuncture points for 68 non-specific chronic back pain patients in a cohort analysis of treatment outcomes pre-post and follow-up MPS.
A detailed comparative analysis of the effects of DC MPS on patient pain levels when applied to standardized acupuncture pain protocol was evaluated; this entailed a standard protocol baseline VAS (VAS) pain scale before and after post electro-therapy and after a two day follow-up. A total of 68 patients with non-specific lower back pain were recruited, all of whom received MPS in 1 session. Pain intensity was measured by visual analog scale at baseline, post and 48 hour follow-up. The VAS response of this patient sample with chronic pain following MPS applied to standard acupuncture pain protocol reflected a statistically significant reduction of 3.088 (95% CI (2.715, 3.462); P=0.001). This corresponds to a mean reduction of 62%; from 5.00 to 1.88, in pain levels post treatment when compared to initial pain levels. There was also further statistically significant reduction of 0.632 (33%) in follow-up pain scores, when compared to post pain levels [95% CI (0.295, 0.969); p=0.0001], for a total end pain relief of 75%. The positive results in this study could have significant and positive implications for patients afflicted with chronic back pain.
Acupuncture, a physical intervention which involves placement of small needles in the skin at different acupoints, has been practiced for thousands of years and is commonly used for many types of chronic pain [4-7]. Science has long hypothesized for a scientific explanation of the analgesic successes of acupuncture. Literature supports that acupuncture relieves pain by regulating the autonomic nervous system , activating the release of beta-endorphins , regulating the central nervous system  and producing local effects on the peripheral nervous system . The efficacy of acupuncture for back pain has been supported in literature .
Electro-acupuncture has been used as an adjunctive pain management in acupuncture for decades  and may be applied invasively or non-invasively. It has been reported to analgesically outperform traditional acupuncture needles .
Traditionally, the modality of choice for electro-acupuncture has been Alternating Current (AC) [15-17]. However, there are two known types of electrical currents, AC and Direct Current (DC). DC is uni-directional and is applied microamp or millionth of amp (10-6 amperes) range and is called microcurrent [18-22]. AC moves back and forth and is applied in the miliamperage range (10-3 amperes), and usually called TENS or electro-acupuncture . It is theorized that AC and DC electro-currents have different modulating affects on the autonomic nervous system and the bodies healing processes [18,20,22].
DC microcurrent therapies involve applying weak direct currents (80 µA – <1 mA), and are now being increasingly recognized as an adjunct for pain relief and Autonomic Nervous System (ANS) regulation [20-22]. There is no consensus in the literature identifying the best practice measures for application of DC microcurrent to acupuncture points for chronic back pain patients. Although sufficient evidence supports the application of AC-electro-acupuncture and acupuncture needles for back pain, there is no “standardized acupuncture protocol” and limited repetitive evidence in literature to support the use of DC electro-therapies for the treatment of back pain. The purpose of this pilot study was to ascertain the impact of DC microcurrent point stimulation on the pain levels of a cohort of patients immediately post application and 48 hours later after a single MPS application.
MATERIALS AND METHODS
Visual Analogue Scale (VAS) was used to evaluate the patient’s pain. The VAS is an 11-point scale from 0-10 with 0 being no pain and 10 being the most intense pain imaginable [23-25]. The patient verbally selects a value that is most in line with the intensity of the pain that they have experienced in the last 24 hours or is often reported as a rating during a specific movement pattern or functional task. The VAS has good sensitivity  and excellent test-retest reliability.
Standard Protocol was developed by BF (Dr Bruce Fashong), as treatment approach to provide a simple, easy to apply, non-pharmaceutical solution for the treatment of chronic pain. The protocol involves the application of concentrated microcurrent stimulation to acupuncture points located in the paraspinal lumbar, hips and legs that isolate the key nerves and muscles of the belly, mid and lower back called the torso or core of the body. This area is highly influential on overall functional movements throughout the rest of the body . When these acupuncture points are collectively treated with concentrated microcurrent, it has been reported that a wide variety of neuromyofascial pain syndromes can be effectively relieved in a timely basis. Standard protocol acupuncture points include the following points (Figure 1).
Statistical analyses were done by 3rd party freelance statistician using paired sample T-test in SPSS software, a widely used program for statistical analysis in social and medical science.
The VAS response in the cohort of patients with chronic pain following the application of MPS applied to standard acupuncture pain protocol reflected a statistically significant reduction of 3.088 (95% CI (2.715, 3.462); P=0.001). This corresponds to a mean reduction of 62%; from 5.00 to 1.88, in pain levels post treatment when compared to initial pain levels. There was a further statistically significant reduction of 0.632 (33%) in mean pain levels 48 hours after treatment, when compared to pain levels post treatment [95% CI (0.295, 0.969); p=0.0001], for a total end pain relief of 75% (Tables 1 & 2; Figure 2).
Figure 2: Back pain scores before, immediately post and 48 hours after treatment with MPS applied to low back and gall bladder meridians.
|Test Value = 0|
|t||df||Sig. (2-tailed)||Mean Difference||95% Confidence Interval Of The Difference|
|Pre Pain Level (0-10)||21.325||67||0||4.985||4.52||5.45|
|Paired Samples Statistics|
|Mean||N||Std. Deviation||% Pain Reduction|
|Pre pain level||5||68||1.90835||0.00%|
|Post Pain level||1.8835||68||1.736||-62%|
|Follow up pain level||1.2647||68||1.50241||-74.80%|
Table 2: Descriptive pain statistics measure of mean, the sample size and a measure of dispersion in standard deviation. This shows the average pain level before therapy is 5.000 (lower variability of 1.90835) compared to the average pain level post application of 1.88 (lower variable 1.736), and follow up pain level of 1.2647 and a variability of 1.50241. Pain levels reduced from 5.00 to 1.2647 at a confidence levels of 95% (p<=0.0001).
The data in this case study clearly shows that the application of MPS to standard protocol provided statistically significantly improved pain outcomes; both immediately post application and two days follow-up for the treatment of non-specific back pain. The consistency of back pain outcomes produced through the treatment of acupuncture points of the standard protocol suggests there is strong relationship between back pain and the muscles and nerves relating to the core (torso?) of the body. It is of interest that the effect of a single application as per protocol continued to show further pain reduction at the 48 hour post evaluation. How long this effect persists needs further study and will help to set guidelines for the frequency of MPS therapy. Since data on analgesic consumption were not available for comparison before and up to 2 days after treatment this analysis cannot predict a possible longer-term use of analgesia and requires further investigation.
It is suggested that low-amplitude DC current mimics human bio-cellular communications, and its application may produce a shift or change in autonomic nervous system resulting in a body wide therapeutic benefits [20,28]. These biochemical processes may provide a plausible explanation for the prolonged pain relief after DC microcurrent, and is an area where future research is required. We have already reported, in a single case study, a modification in autonomic nervous system parameters (sympathetic and parasympathetic balance) parallel to a reduction in pain score in a patient with post concussion using MPS stimulation . It is possible that this same mechanism of action is not at play as in this cohort analysis case report, as the pain was not at the same location; this has to be confirmed in other patients.
Furthermore, MPS might have the same effects as EA, provided that the skin impedance allows a sufficient part of the delivered electrical charges to access the subcutaneous structures.
In conclusion, this study showed MPS provided significant (62%) overall improvements in patient pain levels immediately after initial treatment, and a further significant (30%) at the two-day follow-up, for a total 75% pain relief overall improvement when applied to a standard protocol in patients with chronic back pain, suggesting a possible future role for both these modalities in the management of pain or stress related diseases.
Chronic back pain can limit quality of life, restrict work and social engagement, and is often blamed for the development drug dependency of various forms . The changes produced in the autonomic nervous system functions help validate the potential application of MPS to standard protocol as an option to clinicians treating patients with related chronic back pain. However, long term further investigation is warranted with another focus group to confirm these results and to assess their duration.
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Citation:Chevalier A, Armstrong K, Gokal R (2016) Microcurrent Point Stimulation Applied to Acupuncture Points for the Treatment of Non-Specific Lower Back Pain. J Altern Complement Integr Med 2: 016.
Copyright: © 2016 Antoine Chevalier, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.