Heart rate variability during auricular acupressure at the left sympathetic point on healthy volunteers: a pilot study

This research is a pilot, single-blinded study investigating heart rate variability (HRV) during auricular acupressure at the left sympathetic point (AH7) in healthy volunteers. There were 120 healthy volunteers with hemodynamic indexes (heart rate, blood pressure) within normal ranges, randomly div...

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Bibliographic Details
Published in:Frontiers in neuroscience 2023-06, Vol.17, p.1116154-1116154
Main Authors: Trinh, Dieu-Thuong Thi, Le, Hoang-Linh Thi, Bui, Minh-Man Pham, Thai, Khac-Minh
Format: Article
Language:English
Subjects:
Acupressure
Acupuncture
Adhesives
auricular acupressure
Blood pressure
Clinical medicine
Heart rate
heart rate variability
Hypertension
Nervous system
Neuroscience
Parasympathetic nervous system
Pharmacy
Pilot projects
sympathetic point
Vaccaria ear seed
vagus nerve
Values
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Summary:This research is a pilot, single-blinded study investigating heart rate variability (HRV) during auricular acupressure at the left sympathetic point (AH7) in healthy volunteers. There were 120 healthy volunteers with hemodynamic indexes (heart rate, blood pressure) within normal ranges, randomly divided into two groups AG and SG (in each group having a gender ratio 1:1, aged 20-29), to receive either auricular acupressure using ear seed (AG) or sham method using adhesive patches without seed (SG) at the left sympathetic point while lying in a supine position. Acupressure intervention lasted 25 min, and HRV was recorded by a photoplethysmography device-namely, Kyto HRM-2511B and Elite appliance. Auricular acupressure at the left Sympathetic point (AG) led to a significant reduction in heart rate (HR) ( < 0.05) and a considerable increase in HRV parameters demonstrated by HF (High-frequency power) ( < 0.05), compared to sham auricular acupressure (SG). However, no significant changes in LF (Low-frequency power) and RR (Respiratory rate) ( > 0.05) were observed in both groups during the process. These findings suggest that auricular acupressure at the left sympathetic point may activate the parasympathetic nervous system while a healthy person is lying relaxed.
ISSN:1662-4548
1662-453X
1662-453X
DOI:10.3389/fnins.2023.1116154