Table 1.

Detail of motor imagery (MI) instructions.

	Operator’s Instructions
Before MI	“Be familiar with consistent locomotion of the robot trajectory with your pair of crutches.” “While practicing ‘sit’, please pay attention to your upper limb movement which plays an important role in lowering the body down to the chair with the exoskeleton.”
During MI	“Pay attention to the kinesthetic sensation that just before your limb about to execute the movement.” “Do mental rehearsal in a slow movement phase, for example, heel strike, weight shift, and toe-off.” “We also recommend you to perceive the input sensation of foot sole and hand grip.” “For ‘Do-nothing’, please ignore the somatosensory or visual input sensation, rather stay unfocused eyes with an absent-minded.”
Prohibited	“Do not picture the scene of observing yourselves or other person’s movement execution.”