Table 6.

Effects of passage of time and electrode displacement on joint torque estimation.

Model		After 1 hour		After 24 hours
		NRMSE	$R_a^2$	NRMSE	$R_a^2$
PBM	Mean	5.28%	0.56	5.54%	0.47
	STD	2.68%	0.24	2.95%	0.26
OLS	Mean	4.84%	0.59	5.29%	0.51
	STD	2.98%	0.27	3.04%	0.25
RLS	Mean	4.81%	0.63	5.19%	0.54
	STD	2.91%	0.23	2.98%	0.27
SVM	Mean	5.35%	0.54	6.76%	0.46
	STD	2.22%	0.21	2.95%	0.28
ANN	Mean	5.40%	0.53	6.44%	0.51
	STD	2.15%	0.28	3.09%	0.31
LWPR	Mean	5.42%	0.60	5.93%	0.59
	STD	3.00%	0.23	3.18%	0.30