NDLI: Assessment of Biological Effect of Minimal Acupuncture Using Causal Coherence Function between Blood Pressure and Heart Rate

Content Provider	IEEE Xplore Digital Library
Author	Sugita, N. Seki, T. Yoshizawa, M. Abe, M. Tanaka, A. Abe, K. Yambe, T. Nitta, S.
Copyright Year	2006
Description	Author affiliation: Graduate Sch. of Eng., Tohoku Univ., Sendai (Sugita, N.)
Abstract	To assess the effect of acupuncture on the human, 17 healthy volunteers participated in a double-blind randomized crossover clinical trial using real-needle and no-needle seals. In this study, by using systolic blood pressure variability (SBP) and heart rate variability (HR), not only coherence function $(K^{2})$ between SBP and HR but also two causal coherence functions: $K^{2}$ $_{SBPrarrHR}$ from SBP to HR and $K^{2}$ $_{HRrarrSBP}$ from HR to SBP were introduced to divide causal linearity of the cardiovascular system regarded as a closed-loop system. $K^{2}$ represents total linearity of the system. $K^{2}$ $_{SBPrarrHR}$ and K2 $_{HRrarrSBP}$ correspond to the baroreflex system and the mechanical hemodynamics, respectively. The results showed that K2 $_{SBPrarrHR}$ over the low frequency band (0.04-0.15 Hz) underwent a lot of change in real-needle acupuncture but did not in no-needle acupuncture. And there was difference in $K^{2}$ $_{HRrarrSBP}$ over the high frequency band (0.15-0.45 Hz) immediately after the stimulation of acupuncture. These results have never been obtained from conventional methods dealing with a cardiovascular system as an open-loop system
Starting Page	2895
Ending Page	2898
File Size	3743696
Page Count	4
File Format	PDF
ISBN	8995003847
DOI	10.1109/SICE.2006.314862
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-18
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	The Institute of Control, Automation and Systems
Subject Keyword	Blood pressure Heart rate Linearity Cardiovascular system Frequency Humans Clinical trials Seals Blood pressure variability Heart rate variability causal coherence function heart rate acupuncture
Content Type	Text
Resource Type	Article

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