Analysis of the Heart Rate Variability of Normal Young Men in the Process of EMG Biofeedback
- VernacularTitle:肌电生物反馈中正常青年人心率变异性分析
- Author:
Tinghuai WANG
;
Xinling WU
;
Zhiyong HUANG
- Publication Type:Journal Article
- Keywords:
biofeedback;
autonomic nervous system;
heart rate variability;
laboratory study
- From:
Chinese Mental Health Journal
1991;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the change of activities of the cardiac autonomic nervous system in the EMG biofeedback with the quantified index of heart rate variability(HRV). Methods: Various physiological signals such as ECG、EEG、EMG were recorded by Synchronous Multi-Signal Recording Biofeedback System, and HRV analysis was applied to the extracted ECG signals. Thirty healthy young men received the tests. Results:Compared with the resting state, when the subjects entered biofeedback state, the values of low frequency power, indicator of the sympathetic activity decreased while the values of high frequency power (indicator of the vagal activity) increased, and the values of low frequency power/high frequency power ratio, the marker of the sympatho-vagal balance decreased too. During the later treatment sessions (after 7-10 times treatments) the change exhibited statistical difference and achieved one stable level (low frequency power, baseline 3.98?0.21, 3.82?0.15, 3.93?0.16, 3.91?0.23, test state 3.55?0.32, 3.51?0.29, 3.93?0.16, 3.39?0.26, t=-6.85～-3.68,P
