Evidence map›Paper›PMID 18955219›Full record

ArticleEvidence-based complementary and alternative medicine : eCAM2009

Variation Analysis of Sphygmogram to Assess Cardiovascular System under Meditation.

Chuan-Yi Liu, Ching-Chuan Wei, Pei-Chen Lo

Abstract read
In one paragraph

Article in Evidence-based complementary and alternative medicine : eCAM, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Novel diagnostic model for the deficient and excess pulse qualities.Evidence-based complementary and alternative medicine : eCAM · 2012
    Article
  4. Article
  5. Article
  6. Article
  7. Novel diagnostic algorithm for the floating and sunken pulse qualities and its clinical test.Evidence-based complementary and alternative medicine : eCAM · 2011
    Article
  8. Radial pressure pulse and heart rate variability in heat- and cold-stressed humans.Evidence-based complementary and alternative medicine : eCAM · 2011
    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

3 authors.

Chuan-Yi LiuDepartment of Electrical and Control Engineering, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan, R.O.C. pclo@faculty.nctu.edu.tw.
Ching-Chuan Wei
Pei-Chen Lo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this article, we studied how meditation affects the characteristics of the cardiovascular system, mainly based on blood pressure waveforms (BPW). Four parameters derived from BPW include the rising slope (h(1)/t(1)), normalized height of T wave (h(3)/h(1)), normalized height of V(3) valley (h(4)/h(1)) and normalized height of D wave (h(5)/h(1)), where t(1) and h(i), i = 1, ... ,5 are quantitative features of the BPW waveform pattern. A larger value of h(1)/t(1) reflects better heart ejection ability and aorta compliance. A larger value of h(3)/h(1) may infer an arterial system with good elasticity. The decrease (increase) of h(4)/h(1) parameter indicates the decrease (increase) of peripheral resistance of vessels. A larger value of h(5)/h(1) indicates better artery elasticity and aortic valve function. In comparison with the control group, Zen-meditation practitioners have more after-meditation h(1)/t(1), h(3)/h(1) and h(5)/h(1) increase, with more h(4)/h(1) decrease, with statistical significance (P < 0.05). The observation allows us to infer that Zen meditation may effectively improve relevant characteristics of the cardiovascular system.

Identifiers

PMID18955219
PMCPMC2644278

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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.