Table 2.

The shortest latency of the F-waves, the latency of the MEPs, and the CMCT recorded from the APB and ADM for normal subjects and patients with myelopathy.

		APB			ADM
		F-waves	MEPs	CMCT	F-waves	MEPs	CMCT
Normal subjects (n=150)		24.4±1.8	18.9±1.2	5.3±0.7	24.7±2.0	18.6±1.3	5.2±0.8
C6–7 myelopathy	Case1	27.4	28.1	12.4	29.5	23.0	6.5
	2	26.5	25.0	10.9	27.2	20.0	5.7
	3	27.9	26.2	10.2	26.3	21.0	6.4
	4	24.0	23.0	9.9	26.4	20.4	6.2
	5	26.0	24.4	9.9	25.8	21.4	7.4
	6	27.5	24.0	9.0	29.4	21.5	5.5
	7	25.7	22.6	8.7	26.4	19.5	5.3
	8	23.0	21.6	8.5	23.1	17.8	5.2
	9	26.8	22.9	8.0	28.3	22.9	7.6
	10	23.7	21.0	7.9	23.7	19.3	5.7
	11	28.8	22.7	6.5	28.6	20.6	5.2
	Mean values	26.1±1.9	23.8±2.1	9.3±1.6	26.8±2.1	20.7±1.5	6.1±0.8
	P vs. normal values	*	*	*	*	*	*
C7-T1 myelopathy	12	27.4	19.6	4.5	26.5	19.5	5.3
	13	26.3	20.4	5.6	28.3	20.9	5.7
	14	25.2	20.3	5.8	29.3	21.1	5.1
	15	26.7	20.3	5.8	28.1	20.0	4.9
	Mean values	26.4±0.9	20.2±0.4	5.4±0.6	28.1±1.2	20.4±0.8	5.3±0.3

(ms)

yr, year; APB, abductor pollicis brevis; ADM, abductor digiti minimi; MEPs, motor evoked potentials; CMCT, central motor conduction time.

*P < 0.05.