Table 1

Neurophysiology

Patient		Age		Motor				Sensory
				Median						Ulnar				Peroneal				Tibial		Median				Ulnar				Sural
				Amp	CV					Amp	CV			Amp	CV			Amp	CV	Amp	CV			Amp	CV			Amp	CV
II₅ ^1-150	50	3.5	33		4.2	34		1.0	24		0.05	22		0			0			0
II₃ ^1-150	59				11.0	41					1.4	30		1			1			0
II₄ ^1-150	59	7.0	34		12.5	45		0.5	39					2	41		0			0
II₆ ^1-150	54	15.5	51		18.5	54		0.8	32					5	45		6	46		0
III₁	37				20.0	64		2.5	42					18	53					22	52
III₂	38	12.5	52					4.5	43					9	52					14	42
III₆ ^1-150	34	19.0	48		18.5	46		7.5	39					3	52		0			5	31
III₇	33	23.5	53					6.0	45					27	49		14	46		19	43
III₈	32	30.0	52					20.0	46					14	50					13	35

CV=Maximum conduction velocity in m/s; Amp=peak to peak amplitude (in mV for motor and μV for sensory potentials);
Laboratory normal values: conduction velocities in arms >50 m/s; legs >40 m/s.
Sensory nerve action potential amplitudes >5 μV.
↵1-150 Patients with abnormal studies.