Table 3.

ASIA Impairment Scale (AIS) Grade and the functional impairment (Clinical State) due to Spinal Cord Injury (SCI) [18].

AIS Grade	Clinical State
A	Complete—No motor or sensory function is preserved in the sacral segments S4–S5
B	Incomplete—Sensory but not motor function is preserved below the NLI and includes the sacral segments S4–S5
C	Incomplete—Motor function is preserved below the NLI, and more than half of key muscles below the NLI have a muscle grade less than 3
D	Incomplete—Motor function is preserved below the NLI, and at least half of key muscles below the NLI have a muscle grade of 3 or more
E	Normal—Motor and sensory function is normal