Somatosensory evoked potentials from posterior tibial nerve; normative data.

The somatosensory evoked potentials from posterior tibial nerve were studied in a group of normal adults. The latencies of popliteal fossa potential, L3, N33 and P40 waves as well as central conduction time were analyzed as a function of height and age. The correlation of the peripheral conduction velocity with the subject's age was also studied. The corresponding regression formulae were calculated and can be used to predict normal values of these parameters over a wide range of height and age. Standard error estimates are given for all parameters.