Fig. 4
From: Maintenance of contractile force of the hind limb muscles by the somato-lumbar sympathetic reflexes
Effect of dorsal root transection on the tetanic force of the triceps surae muscles. a, b Typical responses of the tetanic force of the triceps surae muscles and mean arterial pressure induced by tetanic stimulation of the intact tibial nerve before (a) and 20 min after (b) dorsal root transection in a rat with an intact CNS. c Averaged waveform of the 30 tetanic contractions before (dotted line) and after (solid line) dorsal root transection in the same rat. d Summary (n = 8 from eight rats) of the changes in the amplitude of the tetanic force, expressed as a percentage of the mean of two controls obtained before dorsal root transection. Each column, vertical bar, or circle shows the median, interquartile range, and individual data. Open circles: data from rats with an intact CNS; closed circles: data from rats with spinal cord transection. *p < 0.05 (Mann–Whitney U test)