Table 2.

Post hoc comparison by paired t-test on MEP amplitudes and IHI before and after acupuncture.

	Time 1	Time 2	t value	P value
MEP amplitudes (mV)
Left FDI
90% RMT	0.218 ± 0.099	0.137 ± 0.091	2.616	0.028
100% RMT	0.658 ± 0.229	0.405 ± 0.221	3.333	0.009∗
110% RMT	1.485 ± 0.526	0.837 ± 0.359	4.407	0.002∗
130% RMT	2.129 ± 0.565	1.509 ± 0.494	4.159	0.002∗
150% RMT	2.372 ± 0.620	1.732 ± 0.666	4.738	0.001∗
Right FDI
90% RMT	0.124 ± 0.069	0.189 ± 0.108	−1.648	0.134
100% RMT	0.317 ± 0.145	0.812 ± 0.309	−4.169	0.002∗
110% RMT	0.796 ± 0.376	1.683 ± 0.744	−3.781	0.004∗
130% RMT	1.714 ± 0.859	2.587 ± 0.892	−3.769	0.004∗
150% RMT	2.323 ± 1.198	3.031 ± 1.046	−2.859	0.019
IHI (%)
100% RMT	88.281 ± 15.831	106.079 ± 11.508	−3.556	0.006∗
110% RMT	88.497 ± 15.868	102.046 ± 19.423	−1.945	0.084
130% RMT	69.545 ± 20.314	92.743 ± 17.763	−3.826	0.004∗
150% RMT	55.937 ± 20.865	77.705 ± 19.524	−4.410	0.002∗

MEP: motor-evoked potential; IHI: interhemispheric inhibition; FDI: first dorsal interosseous.

Time 1. Before acupuncture intervention.

Time 2. 10 min after the removal of all needles.

^∗ P < 0.01 for MEP analysis and P < 0.0125 for IHI, as Bonferroni's post hoc adjusted significant level.