Demographic and clinical information of healthy control subjects and chronic spinal cord injury patients.

abbreviations: ASIA: American Spinal Injury Association; Grade A: complete loss of motor and sensory function below the level of injury with no sacral preservation; Grade B: incomplete injury with preservation of sensory but not motor function below the level of injury; Grade C: incomplete injury with preservation of motor and sensory function below the level of injury and motor function is grade 3/5 or less in key muscles below the level of injury; Grade D: incomplete injury with preservation of motor and sensory function below the level of injury and motor function is grade 3/5 or more in at least half of key muscles below the level of injury; Grade E: recovery to normal motor and sensory scores; LT: light touch; PP: pin-prick.