Figure 2.

A, Formation of EMG bursts in the MG and TA muscles from the MR and LR during epidural stimulation-induced (40 Hz) stepping in a spinal rat. B, C, Induction of a series of MRs and LRs in the TA and MG muscles, respectively, during one step cycle. Asterisks in B and C correspond to the interval noted with the same number of asterisks in A. Horizontal bars: open, swing phase; filled, stance phase of a step cycle. The diagonal lines in C highlight the shift in the latency of the LR in the MG with consecutive stimuli. Abbreviations are the same as in Figure 1.