Fig. 5.

Prolonged poststimulation inhibition induced by 30-min tibial nerve stimulation. A: bladder capacity was significantly increased after the first 30-min tibial nerve stimulation, but was not further increased after the second 30-min stimulation. The poststimulation inhibitory effect lasted more than 1.5–2 h. B: increase of bladder capacity did not occur if the 30-min stimulation was preceded by repeated short-duration tibial nerve stimulation during rhythmic isovolumetric contractions. However, note that the repeated short-duration stimulation also increases bladder capacity as shown in Fig. 3B. Stimulation: pulse width = 0.2 ms; intensity 7.5–14 V (2–4 T). *Statistically significant difference between the control and treatment groups. Vertical dashed line indicates the time of the second 30-min stimulation. Control: n = 12. Stimulation: n = 9 in A, n = 5 in B.