Average evoked potentials (n = 3 rats) from the TA (A) and soleus (B) muscles using different combinations of electrodes on the array (rostral: rows 1, 2, and 3; mid: rows 4, 5, and 6; and caudal: rows 7, 8, and 9) with eEmc at 1 Hz. Note the variations in the early responses (ER, latency 1-4 ms) and middle responses (MR, latency 4-8 ms) for the different electrode combinations used for the stimulation.