Table 2. Ankle movement task comparisons for SVM across training schemes.

	a. Direct Training Averages per Task		b. Cross-Participant Training Averages per Task		c. Cross-Task Training Averages for Walking
	CORR (r)	RMSE (mm)	CORR (r)	RMSE (mm)	CORR (r)	RMSE (mm)
Constrained Ankle	0.73 ±0.34	0.84 ±0.58	0.62 ±0.33	0.85 ±0.66	0.20 ±0.19	2.45 ±0.89
Free Ankle	0.90 ±0.32	3.67 ±3.01	0.81 ±0.35	4.31 ±3.14	0.19 ±0.17	2.19 ±0.92
Calf Raises	0.90 ±0.30	2.39 ±1.19	0.89 ±0.33	2.56 ±1.31	0.24 ±0.16	2.47 ±1.13
Walking	0.52 ±0.22	2.08 ±1.45	0.29 ±0.18	2.22 ±1.38	-	-
Mix	0.41 ±0.26	2.45 ±3.37	0.38 ±0.26	3.19 ±3.48	0.26 ±0.21	2.32 ±1.20
Average	0.69 ±0.29	2.29 ±1.92	0.60 ±0.29	2.63 ±1.99	0.22 ±0.18	2.36 ±1.03

Correlation is unitless, shown as CORR (r), Root Mean-Square Error (RMSE) shown in millimeters. Average correlations and RMSEs were obtained averaging all corresponding subject combinations.