Table 1.

Overall results of the root-mean-square error (RMSE) and correlation coefficient.

		Index		Middle		Ring
		EMG	Drive	EMG	Drive	EMG	Drive
Sine 20	C	0.15 (0.84)	0.22 (0.70)	0.18 (0.81)	0.14 (0.90)	0.19 (0.86)	0.13 (0.91)
	A	0.22 (0.70)	0.27 (0.67)	0.23 (0.77)	0.19 (0.85)	0.15 (0.90)	0.10 (0.94)
Sine 50	C	0.27 (0.81)	0.21 (0.80)	0.19 (0.80)	0.17 (0.83)	0.16 (0.91)	0.10 (0.92)
	A	0.18 (0.73)	0.10 (0.94)	0.23 (0.76)	0.19 (0.84)	0.25 (0.75)	0.19 (0.85)
Trapezoid 20	C	0.17 (0.91)	0.20 (0.89)	0.22 (0.84)	0.21 (0.88)	0.16 (0.92)	0.16 (0.92)
	A	0.32 (0.32)	0.25 (0.76)	0.14 (0.88)	0.13 (0.89)	0.25 (0.77)	0.15 (0.85)
Trapezoid 50	C	0.10 (0.95)	0.16 (0.92)	0.12 (0.92)	0.13 (0.92)	0.10 (0.94)	0.10 (0.95)
	A	0.33 (0.28)	0.12 (0.95)	0.25 (0.82)	0.22 (0.86)	0.16 (0.93)	0.12 (0.95)
Mean		0.22 ± 0.08 (0.60 ± 0.36)	0.19 ± 0.06 (0.83 ± 0.11)	0.20 ± 0.05 (0.82 ± 0.06)	0.17 ± 0.04 (0.87 ± 0.03)	0.18 ± 0.05 (0.87 ± 0.07)	0.13 ± 0.03 (0.91 ± 0.04)

The correlation coefficients are written in brackets. C and A represent contralateral and affected sides. Values in italics show the cases that the EMG-based estimation is better than the neural-drive-based estimation.