Research article summary:

Effect of magnitopuncture on sympathetic and parasympathetic nerve activities in healthy drivers--assessment by power spectrum analysis of heart rate variability.

Abstract Extract:
The object of this study was to assess the effects of magnitopuncture applied to Dazhui (DU14) point and Neiguan (PC6) points on sympathetic and parasympathetic nerve activities by power spectrum analysis of heart rate variability in healthy drivers ... (Full abstract text below)

Published 2003Jan in Journal: Eur J Appl Physiol (Language : eng)

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1. Eur J Appl Physiol. 2003 Jan;88(4-5):404-10

Effect of magnitopuncture on sympathetic and parasympathetic nerve activities in healthy drivers--assessment by power spectrum analysis of heart rate variability.

Li Z, Jiao K, Chen M, Wang C

Room 411, Mechanical building, Shanghai Jiaotong University, Shanghai 200030, China. zyongli@263.net

The object of this study was to assess the effects of magnitopuncture applied to Dazhui (DU14) point and Neiguan (PC6) points on sympathetic and parasympathetic nerve activities by power spectrum analysis of heart rate variability in healthy drivers during simulated driving. Using power spectrum analysis, the low frequency (LF) and high frequency (HF) components of heart rate variability can be calculated reflecting the sympathetic and parasympathetic activity. The 40 healthy male subjects were randomly divided into two groups: A (study group) and B (control group). All subjects were required to be well rested before the experiment. The subjects of both groups were required to perform a simulated driving task for 3 h. During the driving, magnitopunctures were applied to the DU14 and PC6 points for A while the subject performed the task for 2.5 h, and for B magnitopunctures were applied to non-acupuncture points which were 1.5 cm away from the two acupuncture points respectively over the same time. Subjective response to a questionnaire was obtained after the simulated task in the two groups. At the end of the driving task the LF component in normalized units (NU) had decreased significantly ( P<0.05) indicating a reduced sympathetic nerve activity and the HF component (NU) increased significantly ( P<0.05) indicating a increased parasympathetic nerve activity for A compared with pre-stimulation while for B no significant differences were observed. There were significant group differences in LF (NU), HF (NU) and LF:HF at the end of the driving task ( P<0.05). It was concluded that a modulating effect of magnitopuncture on sympathetic and parasympathetic nerve activities in healthy subjects was associated with the acupuncture points. The findings represent physiological evidence that magnitopuncture may reduce mental fatigue in healthy drivers.

PMID : 12527970 [PubMed - Indexed for MEDLINE]

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Full Author Information

First Name	LastName	Initials
Zengyong	Li	Z
Kun	Jiao	K
Ming	Chen	M
Chengtao	Wang	C

Affiliation: Room 411, Mechanical building, Shanghai Jiaotong University, Shanghai 200030, China. zyongli@263.net

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