Table 8.

Typical HRV measures after applying median and threshold filters, and the proposed algorithms for various peak sizes, compared to the HRV measures in the original signal for Participant 2 (PhysioNet database).

Signal	Method	RMSSD	SDNN	SDSD	Total Power	LF	HF	SD1	SD2	Mean Error
Original		0.17	2.85	0.16	1.36	0.11	0.07	0.11	4.02
Peak 2x	Median w = 3	0.14	2.85	0.14	1.35	0.11	0.06	0.10	4.02	6.6%
	Thr m = 3	0.17	2.85	0.16	1.31	0.10	0.06	0.11	4.02	3.0%
	Algorithm 1 (StDev.)	0.17 (1.3 × 10${}^{-2}$)	2.84 (5.2 × 10${}^{-4}$)	0.17 (1.3 × 10${}^{-2}$)	1.32 (5.4 × 10${}^{-3}$)	0.11 (3.2 × 10${}^{-3}$)	0.07 (1.9 × 10${}^{-3}$)	0.12 (9.5 × 10${}^{-3}$)	4.01 (5.7 × 10${}^{-4}$)	2.5%
Peak 3x	Median w = 3	0.14	2.85	0.14	1.30	0.10	0.06	0.10	4.02	8.5%
	Thr m = 3	0.17	2.85	0.16	1.31	0.10	0.06	0.11	4.02	3.0%
	Algorithm 1 (StDev.)	0.18 (8.5 × 10${}^{-3}$)	2.84 (3.0 × 10${}^{-4}$)	0.17 (8.7 × 10${}^{-3}$)	1.32 (3.9 × 10${}^{-3}$)	0.11 (2.3 × 10${}^{-3}$)	0.06 (1.4 × 10${}^{-3}$)	0.12 (6.2 × 10${}^{-3}$)	4.01 (3.2 × 10${}^{-4}$)	2.5%