Step Estimator Based on a Wearable ECG Monitor

Table 2

Detection accuracy of proposed algorithm from training participants.

Treadmill speed (km/h)	Subject 1			Subject 2			Subject 3			Subject 4			Subject 5
	IMF 6 (%)	IMF 7 (%)	PA (%)	IMF 6 (%)	IMF 7 (%)	PA (%)	IMF 6 (%)	IMF 7 (%)	PA (%)	IMF 6 (%)	IMF 7 (%)	PA (%)	IMF 6 (%)	IMF 7 (%)	PA (%)
1.8	−6.32	96.84	96.84	−27.59	98.85	98.85	−7.55	100.00	100.00	−57.89	97.37	97.37	30.11	75.27	75.27
2.7	19.23	94.23	94.23	−13.86	99.01	99.01	18.35	91.74	91.74	−20.00	97.78	97.78	48.42	77.89	77.89
3.6	58.93	71.43	71.43	0.00	97.25	97.25	6.90	86.21	86.21	−11.88	95.05	95.05	39.18	80.41	80.41
4.5	88.33	65.00	88.33	−1.71	97.44	97.44	29.27	86.18	86.18	26.32	91.23	91.23	71.15	69.23	71.15
5.4	98.68	59.21	98.68	31.37	92.81	92.81	96.00	49.33	96.00	90.91	46.15	90.91	100.00	52.78	100.00
6.3	98.68	61.84	98.68	62.42	71.34	62.42	100.00	53.33	100.00	78.91	53.06	78.91	100.00	53.52	100.00
7.2	98.72	58.97	98.72	91.14	59.49	91.14	98.70	61.04	98.70	83.44	42.38	83.44	96.60	48.98	96.60
8.1	83.54	49.37	83.54	98.75	53.75	98.75	98.14	54.66	98.14	95.48	45.16	95.48	99.33	51.01	99.33
9.0	85.89	51.53	85.89	100.00	50.63	100.00	98.77	51.85	98.77	97.47	49.37	97.47	98.65	56.76	98.65
Avg.	69.52	67.60	90.70	37.84	80.06	93.07	59.84	70.48	95.08	42.53	68.62	91.96	75.94	62.87	88.81

PA, proposed algorithm.