Single-lead ECG based autonomic nervous system assessment for meditation monitoring

Authors
Park, ChankiYoun, In chanHan, Sungmin
Issue Date
2022-12
Publisher
Nature Publishing Group
Citation
Scientific Reports, v.12, no.1
Abstract
We propose a single-lead ECG-based heart rate variability (HRV) analysis algorithm to quantify autonomic nervous system activity during meditation. Respiratory sinus arrhythmia (RSA) induced by breathing is a dominant component of HRV, but its frequency depends on an individual’s breathing speed. To address this RSA issue, we designed a novel HRV tachogram decomposition algorithm and new HRV indices. The proposed method was validated by using a simulation, and applied to our experimental (mindfulness meditation) data and the WESAD open-source data. During meditation, our proposed HRV indices related to vagal and sympathetic tones were significantly increased (p?<?0.000005) and decreased (p?<?0.000005), respectively. These results were consistent with self-reports and experimental protocols, and identified parasympathetic activation and sympathetic inhibition during meditation. In conclusion, the proposed method successfully assessed autonomic nervous system activity during meditation when respiration influences disrupted classical HRV. The proposed method can be considered a reliable approach to quantify autonomic nervous system activity.
Keywords
HEART-RATE-VARIABILITY; RESPIRATORY SINUS ARRHYTHMIA; MINDFULNESS MEDITATION; BLOOD-PRESSURE; BAROREFLEX SENSITIVITY; STRESS REDUCTION; RR-INTERVAL; HUMANS; SLOW; METAANALYSIS
ISSN
2045-2322
URI
https://pubs.kist.re.kr/handle/201004/75880
DOI
10.1038/s41598-022-27121-x
Appears in Collections:
KIST Article > 2022
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