Fig. 6.

Locomotor EMG activity in SOL and TA muscles during treadmill locomotion. Representative samples of activity recorded while walking on a level treadmill at 11 m/min are shown for an Intact rat (top) and for rats 10 wk after transection and repair of the sciatic nerve and Untrained (middle) or Trained rat (bottom). Activity was synchronized with video recordings. Vertical dotted lines and upward pointing arrows are placed at the onset of the swing phase of the step cycle, when the paw is removed from the treadmill belt.