Image of nerve conduction study data. Motor nerve conduction study showed normal velocity in the four limbs but variable decreased amplitude at the median, ulnar, tibial, and peroneal nerves on both sides. The right peroneal nerve showed slightly prolonged latency. The sensory nerve conduction study was otherwise normal except for the decreased amplitude at the left tibial nerve. Left median F-wave could not be elicited, but H-wave was evoked normally.