Depressor effect on blood pressure and flow elicited by electroacupuncture in normal subjects

Chih Feng Lin, Jiuan Miaw Liao, Shih Jei Tsai, Ping Yen Chiang, Hua Ting, Chih Yung Tang, Kuo Long Lou, Li Chun Hsieh, Den Wu Wang, Tzer Bin Lin

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


To clarify the effect of electroacupuncture (Ea) on the activity of the cardiovascular system in normal individuals, hemodynamic parameters including arterial blood pressure (BP), finger blood flow (FBF) and heart rate (HR) as well as paravertebral temperature (PVT) were non-invasively recorded under Ea stimulation. Surface stimulation electrode was placed on the Hoku point (Li-4). Square wave pulses (0.05 ms) were applied from a stimulator with a stimulation frequency of 2 Hz (3 min). The stimulation intensity was five times of sensory threshold. BP and FBF were decreased (68.5±6.0%, P<0.01 and 96.8±1.1%, P<0.01 of control, respectively, n=7) while HR and PVT were increased significantly (115.0±5.1 of control, P<0.05 and 0.054±0.004 degree C, P<0.01, respectively, n=7) during Ea treatment. The results suggested an inhibition in sympathetic outflow, which induced vasodilatation of systemic arteriole and decrease in BP and FBF were elicited by Ea stimulation.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalAutonomic Neuroscience: Basic and Clinical
Issue number1
Publication statusPublished - Aug 29 2003
Externally publishedYes


  • Autonomic dysfunction
  • Blood pressure
  • Blow flow
  • Electroacupuncture
  • Heart rate

ASJC Scopus subject areas

  • Endocrine and Autonomic Systems
  • Clinical Neurology
  • Cellular and Molecular Neuroscience


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