Table 5.
Corticomotor activity after different tDCS interventions (n = 48)
| Group | Anodal group (n = 12) | Bilateral group (n = 12) | Cathodal group (n = 12) | Sham group (n = 12) | |||||
|---|---|---|---|---|---|---|---|---|---|
| pre | post | pre | post | pre | post | pre | post | p value | |
| RMT (%) | 58.0 (49.8, 63.8) | 58.0 (50.5, 64.5) | 63.0 (48.3, 69.5) | 63.0 (48.5, 68.8) | 62.5 (54.0, 65.8) | 65.0 (53.5, 67.8) | 57.0 (52.5, 65.5) | 57.5 (52.5, 64.0) | |
| change | 0.0 (0.0, 2.0) | 1.5 (0.0, 2.8) | 2.0 (0.0, 3.0) | 0.0 (0.0, 1.0) | 0.153 | ||||
| SP (ms) |
130.1 (110.2, 139.5) |
124.1 (117.4, 136.8) |
142.8 (117.2, 168.9) |
154.5 (128.3, 189.8) |
127.9 (118.8, 144.1) |
139.4 (127.3, 156.4)# |
144.7 (131.4, 156.5) |
145.5 (130.4, 156.3) |
|
| change | -1.1 (-3.0, 6.4) | 9.2 (3.0, 20.5)a,s | 7.0 (3.4, 14.6)s | 1.5 (-3.7, 3.6) | 0.002 | ||||
| SICI (%) | 49.1 (40.9, 58.6) | 45.3 (34.3, 60.4) | 46.0 (39.2, 65.7) | 47.3 (37.7, 58.1) | 42.2 (39.6, 48.9) | 42.6 (34.4, 48.2) | 42.4 (37.2, 63.4) | 47.9 (38.2, 59.2) | |
| change | -2.5 (-6.2, -0.1) | -1.6 (-11.9, 12.0) | 1.2 (-9.0, 4.9) | 2.8 (-1.7, 7.8) | 0.296 | ||||
Data are presented as the median (interquartile range)
Abbreviations: RMT, resting motor threshold; SP, silent period; SICI, short interval intracortical inhibition
#, p < 0.05 for intragroup comparison. a, p < .05 as compared with Anodal group. s, p < .05 as compared with Sham group