Fig. 5.

Short-term stimulation is as effective as long-term stimulation in accelerating axonal regeneration and PMR.a, Comparison of the effects of different periods of 20 Hz continuous electrical stimulation (1 hr, 1 d, 1 week, and 2 weeks) on the mean number ± SE of motoneurons that regenerated into muscle (mu; filledbars), cutaneous (cu;strippedbars), and both (b; openbars) branches of the femoral nerve 3 weeks after nerve repair with the effects of no stimulation or sham stimulation. b, c, Data from individual rats (numbered on the x-axis) showing the effects of 1 hr of sham stimulation (b) and 1 hr of 20 Hz continuous electrical stimulation of the proximal nerve stump immediately after nerve repair (c).stim, Stimulation.