Violet laser acupuncture - part 5: an investigation of different stimulation frequencies on heart rate and variability.

Author: He W, Wedig D, Wang L, Gaischek I, Litscher G.
Affiliation: Stronach Research Unit for Complementary and Integrative Laser Medicine, Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine and TCM Research Center Graz, Medical University of Graz, Graz, Austria; Department of Meridian, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China.
Conference/Journal: J Acupunct Meridian Stud.
Date published: 2012 Dec
Other: Volume ID: 5 , Issue ID: 6 , Pages: 290-4 , Special Notes: doi: 10.1016/j.jams.2012.07.021 , Word Count: 160

Violet laser acupuncture was recently described by our research group. Neurochemical studies of acupuncture analgesia revealed that 2- and 100-Hz peripheral stimulation induce differential peptide release from preproenkephalin and preprodynorphin via different neural pathways. The goal of the fifth part of this series was to perform a pilot investigation on the effects of 2- and 100-Hz violet laser acupuncture on heart rate (HR) and its variability (HRV) in 13 healthy volunteers (mean age ± standard deviation: 23.9 ± 1.7 years) using a new non-invasive method. We found a significant difference in mean HR before, during, and after 2- or 100-Hz violet laser acupuncture, and there was a significant difference of the low frequency/ high frequency ratio before, during, and after 2- or 100-Hz violet laser acupuncture. However, we did not observe a significant difference in total HRV before, during, or after treatment. Further studies should be carried out to compare the effects of different violet laser acupuncture frequencies.
Copyright © 2012. Published by Elsevier B.V.
PMID: 23265079