(a) component x
a
b
c
R
2
Romberg's posture
1.01
-0.21
-5.71
0.98
Posture I
1.37
-0.15
-5.74
0.97
Posture II
1.25
-0.06
-5.42
0.85
(b) component y
a
b
c
R
2
Romberg's posture
0.81
-0.02
-5.57
0.83
Posture I
1.04
-0.25
-5.73
0.98
Posture II
1.56
-0.36
-5.87
0.99
Table 1:
Coefficients of the potential function in each component: (a) lateral direction x, and (b) anterior/posterior direction, while subject’s eyes were open.
