Table 3.

Mean (standard deviation) of the RMSE for the five-fold cross-validation using the different input parameters. The joint angles predicted for the left and right have been summarised.

		PCA-Net	PTS-Net	PT-Net	PS-Net	P-Net
hip	sagittal	4.11 (0.96)	1.74 (0.54)	1.70 (0.58)	1.62 (0.55)	2.31 (0.62)
	frontal	1.67 (0.38)	0.95 (0.28)	0.91 (0.28)	0.87 (0.30)	1.16 (0.26)
	transverse	2.77 (0.87)	2.13 (0.86)	2.13 (0.91)	2.12 (0.92)	2.72 (0.97)
knee	sagittal	4.60 (1.06)	1.77 (0.38)	1.98 (0.51)	1.69 (0.44)	2.97 (0.55)
	frontal	2.16 (0.71)	1.58 (0.66)	1.77 (0.82)	1.54 (0.72)	2.18 (0.85)
	transverse	3.49 (1.10)	2.62 (1.06)	2.85 (1.25)	2.48 (1.09)	3.36 (1.27)
ankle	sagittal	2.49 (0.31)	1.50 (0.36)	1.58 (0.43)	1.35 (0.37)	2.01 (0.35)
	frontal	2.17 (0.56)	1.71 (0.72)	1.76 (0.72)	1.51 (0.62)	2.21 (0.72)
	transverse	1.79 (0.38)	1.39 (0.47)	1.39 (0.48)	1.21 (0.41)	1.68 (0.47)