Statistical Analysis of the Consistency of HRV Analysis Using BCG or Pulse Wave Signals

Figures

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  Figure A1. Bland-Altman plots for the HRV parameters calculated from J-J and R-R intervals. Data from 50 subjects. (a) Mean. (b) SDNN. (c) pNN50. (d) RMSSD. (e) LF. (f) HF. (g) LF/HF. Heavy black line shows mean difference, thin lines represent the 95% confidence intervals and red dots show the measurement data.

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  Figure A2. Bland-Altman plots for the HRV parameters calculated from P-P and R-R intervals. Data from 50 subjects. (a) Mean. (b) SDNN. (c) pNN50. (d) RMSSD. (e) LF. (f) HF. (g) LF/HF. Heavy black line shows mean difference, thin lines represent the 95% confidence intervals and red dots show the measurement data.

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  Figure A3. Bland-Altman plots for the HRV parameters calculated from J-J and R-R intervals of subject A. (a) Mean. (b) SDNN. (c) pNN50. (d) RMSSD. (e) LF. (f) HF. (g) LF/HF. Heavy black line shows mean difference, thin lines represent the 95% confidence intervals and red dots show the measurement data.

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  Figure A4. Bland-Altman plots for the HRV parameters calculated from P-P and R-R intervals of subject A. (a) Mean. (b) SDNN. (c) pNN50. (d) RMSSD. (e) LF. (f) HF. (g) LF/HF. Heavy black line shows mean difference, thin lines represent the 95% confidence intervals and red dots show the measurement data.

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  Figure A5. Bland-Altman plots for the HRV parameters calculated from J-J and R-R intervals of subject B. (a) is for Mean. (b) is for SDNN. (c) is for pNN50. (d) is for RMSSD. (e) is for LF. (f) is for HF. (g) is for LF/HF. The black line represents the 95% confidence interval and the red dot represents the measurement data.

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  Figure A6. Bland-Altman plots for the HRV parameters calculated from P-P and R-R intervals of subject B. (a) is for Mean. (b) is for SDNN. (c) is for pNN50. (d) is for RMSSD. (e) is for LF. (f) is for HF. (g) is for LF/HF. The black line represents the 95% confidence interval and the red dot represents the measurement data.

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  Figure A7. Bland-Altman plots for the HRV parameters calculated from J-J and R-R intervals of subject C. (a) is for Mean. (b) is for SDNN. (c) is for pNN50. (d) is for RMSSD. (e) is for LF. (f) is for HF. (g) is for LF/HF. The black line represents the 95% confidence interval and the red dot represents the measurement data.

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  Figure A8. Bland-Altman plots for the HRV parameters calculated from P-P and R-R intervals of subject C. (a) is for Mean. (b) is for SDNN. (c) is for pNN50. (d) is for RMSSD. (e) is for LF. (f) is for HF. (g) is for LF/HF. The black line represents the 95% confidence interval and the red dot represents the measurement data.

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  Figure 1. Photograph of the devices used to simultaneously record BCG, ECG and PW signals.

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  Figure 2. Peak detection of the BCG, ECG, PW signals. Circles indicate time points from which heart intervals are recorded. J for the BCG signals, R for the ECG and P for pulse wave (PW).

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  Figure 3. Data from 50 subjects. (a) linear regression of R-R and J-J intervals. (b) linear regression of R-R and P-P intervals.

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  Figure 4. Pairs of HRV metrics (title above each plot) obtained from 50 subjects plotted against the line of identity (representing perfect agreement). x- and y-axes show BCG and ECG values, respectively. (a) Mean. (b) SDNN. (c) pNN50. (d) RMSSD. (e) LF. (f) HF. (g) LF/HF.