Application of magnetic motor stimulation for measuring conduction time across the lower part of the brachial plexus.

Objective: The objective of this study was to calculate central motor conduction time (CMCT) of median and ulnar nerves in normal volunteers. Conduction time across the lower part of the brachial plexus was measured by using magnetic stimulation over the motor cortex and brachial plexus and recording the evoked response in hand muscles.

Design: This descriptive study was done on 112 upper limbs of healthy volunteers.