Ballistocardiogram (BCG) is a non-contact cardiac activity monitoring method. Our preliminary research of heart rate variability (HRV) was carried out using BCG. BCG signal and electrocardiography (ECG) signal of 20 subjects were measured synchronously in static, valsalva maneuver, post valsalva maneuver and post exercise states. Cardiac periods of these two signals were calculated using RR intervals of ECG and JJ intervals of BCG respectively. HRV parameters in time domain analysis, in frequency domain analysis and nonlinear analysis were calculated. The correlation of HRVBCG parameters and HRVECG parameters were checked; the significant differences between HRVBCG and HRVECG parameters were tested using paired t-test. Results showed that the variance trends of cardiac periods calculated by ECG and BCG were the same; the correlations of HRVBCG and HRVECG parameters were all above 0.81; HRVBCG parameters showed no significant differences with HRVECG during static, post valsalva maneuver and post exercise state while nPNN50, LF/HF and SD1 showed significant differences during Valsalva maneuver state.
CAO Xinrong
,
WANG Kun
,
ZHANG Jing
,
TANG Jintian
. Possibility of Heart Rate Variability Analysis Using Ballistocardiogram[J]. Science & Technology Review, 2014
, 32(4-5)
: 86
-90
.
DOI: 10.3981/j.issn.1000-7857.2014.h1.014
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