Evidence map›Paper›PMID 18955218›Full record

ArticleEvidence-based complementary and alternative medicine : eCAM2008

Skin impedance measurements for acupuncture research: development of a continuous recording system.

Agatha P Colbert, Jinkook Yun, Adrian Larsen, Tracy Edinger, William L Gregory, Tran Thong

Abstract read
In one paragraph

Article in Evidence-based complementary and alternative medicine : eCAM, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Altered Impedance of Ear Acupuncture Point MT2 in Breast Cancer Patients: A Preliminary Observation.Evidence-based complementary and alternative medicine : eCAM · 2015
    Article
  7. Article
  8. Biophysical characteristics of meridians and acupoints: a systematic review.Evidence-based complementary and alternative medicine : eCAM · 2012
    Article
  9. Body massage performance investigation by brain activity analysis.Evidence-based complementary and alternative medicine : eCAM · 2012
    Article
  10. Abnormal gastroscopy findings were related to lower meridian energy.Evidence-based complementary and alternative medicine : eCAM · 2011
    Article
  11. Article
  12. Prospective tests on biological models of acupuncture.Evidence-based complementary and alternative medicine : eCAM · 2009
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Agatha P ColbertNational College of Natural Medicine, 049 SW Porter St, Portland, OR 97201 USA. Tel.: 1-503-552-1745; acolbert@ncnm.edu.
Jinkook Yun
Adrian Larsen
Tracy Edinger
William L Gregory
Tran Thong

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Skin impedance at acupuncture points (APs) has been used as a diagnostic/therapeutic aid for more than 50 years. Currently, researchers are evaluating the electrophysiologic properties of APs as a possible means of understanding acupuncture's mechanism. To comprehensively assess the diagnostic, therapeutic and mechanistic implications of acupuncture point skin impedance, a device capable of reliably recording impedances from 100 kOmega to 50 MOmega at multiple APs over extended time periods is needed. This article describes design considerations, development and testing of a single channel skin impedance system (hardware, control software and customized electrodes). The system was tested for accuracy against known resistors and capacitors. Two electrodes (the AMI and the ORI) were compared for reliability of recording over 30 min. Two APs (LU 9 and PC 6) and a nearby non-AP site were measured simultaneously in four individuals for 60 min. Our measurement system performed accurately (within 5%) against known resistors (580 kOmega-10 MOmega) and capacitors (10 nF-150 nF). Both the AMI electrode and the modified ORI electrode recorded skin impedance reliably on the volar surface of the forearm (r = 0.87 and r = 0.79, respectively). In four of four volunteers tested, skin impedance at LU 9 was less than at the nearby non-AP site. In three of four volunteers skin impedance was less at PC 6 than at the nearby non-AP site. We conclude that our system is a suitable device upon which we can develop a fully automated multi-channel device capable of recording skin impedance at multiple APs simultaneously over 24 h.

Identifiers

PMID18955218
PMCPMC2586308

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.