Table 2.
Mean (± SEM) raw values for neurophysiological variables for both limbs in the sham-tDCS and real-tDCS groups for baseline (week 0), immediately post (week 3) and follow-up (week 6).
| Limb | Group | Time | MAS score | MEP amplitude (% MMAX) | CSP (ms) | SICI (% test stimuli) |
|---|---|---|---|---|---|---|
| Non-paretic | ||||||
| Real | Baseline | NA | 28.0 ± 7.6 | 124 ± 16.3 | 64.0 ± 6.3 | |
| Post | 20.4 ± 3.4 | 163 ± 8.7*# | 55.3 ± 5.3 | |||
| FU | 26.1 ± 5.5 | 152 ± 13.5* | 50.2 ± 6.9*# | |||
| Sham | Baseline | NA | 34.6 ± 6.9 | 125 ± 17.7 | 53.2 ± 10.5 | |
| Post | 28.2 ± 6.0 | 128 ± 15.5 | 52.8 ± 7.1 | |||
| FU | 29.7 ± 5.9 | 132 ± 17.2 | 52.3 ± 7.0 | |||
| Paretic | ||||||
| Real | Baseline | 6 ± 1.3 | 6.3 ± 1.4 | NA | 83.9 ± 9.1 | |
| Post | 10 ± 1.4* | 10.4 ± 2.8* | 72.4 ± 4.4 | |||
| FU | 10 ± 1.5*# | 9.0 ± 2.1* | 71.7 ± 6.7 | |||
| Sham | Baseline | 6 ± 1.9 | 14.6 ± 2.3 | NA | 78.6 ± 11.1 | |
| Post | 9 ± 2.3* | 16.3 ± 2.4 | 75.4 ± 8.5 | |||
| FU | 8 ± 2.2 | 15.5 ± 1.8 | 72.4 ± 8.6 |
CSP, cortical silent period; FU, follow-up; MAS, motor assessment scale; MEP, motor evoked potential; MMAX, maximal M-wave; NA, not applicable/measured; SICI, short-interval intracortical inhibition. *P < 0.05 compared with baseline (within-group), #P < 0.05 compared with sham (between-group).