Second-order model (Walk)

lowerback-Yrot

Iradius—Xrot

Sequence

Samples

NMSE

NLPD

NMSE

NLPD

Sobol+

S10

0.21

3.57

0.29

14.40

Sobol+

S30

0.02

-0.28

0.21

3.86

Sobol+

S60

0.13

1.95

0.67

15.59

Sobol+

S100

0.13

3.49

0.08

3.37