Auricular Electro-acupuncture and HRV

 

This study looks at electro acupuncture in the concha of the ear(link was to previous post that gives innervation of ear:concha only 45% vagal). In this study, they stimulated the left ear with electro acupuncture at 10 hz and also had a manual acupuncture group, placebo acupuncture group, and a control group.  The found that only the electro-acupuncture group showed vagal enhancement with treatment.  Part of their conclusion–>
“A long-lasting increase of HRV, which constitutes an index of adaptability of the whole organism to respond to rapidly changing demands of the environment and furthermore can constitute a type of resource when these demands request emotional regulation [8], should be examined in future studies.”
Zurich study stimulated the concha or canal using 10hz, Auricular ear stim acupuncture and vagal activity