Table 1.

Space state of VC state transition

State space $\mathcal{S}$	Description
Out (o)	Patient not placed in the correct position
In (i)	Patient placed in the correct position
Exercise (e)	Exercise and movement trial beginning
Normal (n)	Normal movement pattern
$Trunkrotation$ (tr)	Patient rotates the torso
$Shoulderelevation$ (se)	Patient elevates the shoulder
$Trunkdisplacement$ (td)	Patient displaces the torso
Target (tg)	Patient reaches the target position