EMG response to stimulation at rostral electrodes on the array during standing. A) EMG from ankle flexor and extensor muscles bilaterally while the spinal rat transitions from a crouched to a standing position facilitated by epidural stimulation (40 Hz). B) EMG from the right (R) and/or left (L) MG, Sol, and TA muscles during standing under the influence of epidural stimulation (expansion of highlighted region in A). C) Average responses of the 20 evoked potentials during full weight-bearing standing under the influence of epidural stimulation shown in B. MR represents the middle response and the LR represents the long latency late response. Note the different amplitude scales for each muscle.