FIG. 7.

EMG traces from hindlimb muscles during unassisted treadmill stepping (22 cm/sec) were compared at 2 weeks post-spinal cord injury (SCI) (pre-training) and after 80 days of training (or non-training). “Before and after” EMG activity of four muscles soleus (SOL), tibialis anterior (TA), semitendinosus (ST), and vastus lateralis (VL) are shown for the left hindlimb of one trained and one non-trained animal at matched time points. Post-training, the trained animal exhibits a more coordinated burst pattern while the non-trained animal's EMG activity has uncoordinated bursting activity.