Fig. 4

Locomotor recovery is improved by red light treatment following T10 hemicontusion spinal cord injury. Daily locomotor scores (BBB, see the “Methods” section) following a right-sided hemicontusion spinal cord injury are shown for the contralateral (a) and ipsilateral (b) sides. Red light treatment results in significant locomotor improvements on both sides over the period indicated by the black bar (large asterisk, linear mixed model with repeated measures). Point-wise comparisons between groups for individual time points are also shown (small asterisks, Student’s t test). Individual data points are presented as open square or circular dots; lines indicate the group means. *p < 0.05; **p < 0.01