Table 3.

Mean Change from baseline to 6 weeks and 18 weeks by treatment group for median nerve conduction parameters

Treatment Group
	0mT (sham) n=20	15mT n=20	45mT n=20
	Mean ± SD	Mean ± SD	Mean ± SD	Between group ANOVA§
SDL (msec)
Baseline	4.4 ± .8	4.2 ± .5	4.7 ± .9
6 weeks	4.2 ± .9	4.2 ± .5	4.7 ± 1.0
18 weeks	4.3 ± .9	4.3 ± .7	4.8 ± 1.2
Change B- 6 weeks	.2 ± .3 (p=.022)	.1 ± .2 (p=.326)	0 ± .4 (p=.872)	(p=.160)
Change B-18 weeks	0 ± .4 (p=.685)	−.1 ± .5 (p=.345)	−.1 ± .6 (p=.493)	(p=.768)
SNAP (µvolts)
Baseline	17.1 ± 8.5	19.0 ± 7.7	16.0 ± 11.6
6 weeks	18.2 ± 7.7	18.5 ± 8.3	16.0 ± 8.8
18 weeks	18.3 ± 7.9	16.9 ± 6.3	16.2 ± 10.3
Change B- 6 weeks	1.0 ± 6.4 (p=.474)	.5 ± 7.0 (p=.734)	0 ± 6.0 (p=.974)	(p=.734)
Change B-18 weeks	−1.2 ± 7.4 (p=.488)	2.2 ± 7.3 (p=.202)	−.3 ± 4.1 (p=.773)	(p=.226)
MDL (msec)
Baseline	4.9 ± 1.1	4.9 ± .9	5.0 ± .8
6 weeks	5.0 ± 1.3	5.1 ± 1.6	5.0 ± .8
18 weeks	5.1 ± 1.3	5.2 ± 1.0	5.2 ± 2.4
Change B- 6 weeks	−.2 ± .5 (p=.203)	−.2 ± 1.2 (p=.429)	.1 ± .6 (p=.626)	(p=.533)
Change B-18 weeks	−.3 ± .5 (p=.045)	−.3 ± .8 (p=.149)	−.1 ± .3 (p=.070)	(p=.744)
CMAP (mvolts)
Baseline	5.4 ± 1.9	5.9 ± 2.9	5.7 ± 2.2
6 weeks	5.9 ± 1.9	5.1 ± 2.6	5.6 ± 2.7
18 weeks	5.9 ± 3.0	4.8 ± 2.1	4.3 ± .7
Change B- 6 weeks	−.6 ± 1.9 (p=.227)	.8 ± 2.5 (p=.174)	.2 ± 2.0 (p=.721)	(p=.167)
Change B-18 weeks	−.5 ± 2.3 (p=.298)	1.1 ± 2.2 (p=.042)	0 ± 1.5 (p=.953)	(p=.049)

Detailed description

SDL= median nerve sensory distal latency (peak)

SNAP=sensory nerve action potential (amplitude)

MDL=motor distal latency (onset)

CMAP=compound motor action potential (amplitude)

6 weeks = end of magnet wear

18 weeks = follow-up visit.

There were no significant between- group differences at 0–6 weeks, 6–18 weeks or 0–18 weeks in any of the outcome measures.