[Segmental conduction times in motor pathways for the soleus muscle--methodology and normal values]

The study performed in 30 normal subjects (24F, 6M) with age range 18-55 years and height range 154-188 cm. Electrical stimulation was applied to the tibial nerves and direct response M and F-wave was recorded from right and left SOLEUS (60 examinations). Transcranial and paravertebral (S1 level) magnetic stimulation was applied with simultaneous recording of responses from both SOL. A software system was developed which permitted the redout of parameters (latencies and amplitudes) from Mystro device, calculation of the derived parameters (segmental motor conduction times) and classification of results according to 95% confidence intervals for the parameters obtained in the group of normal subjects included in the study. Report form was prepared which on line gave the results of individuals examinations. The fast and painless investigation should prove useful in electrophysiological diagnosis of motor pathway function including the entire length.