Table 2. Results of Dunnett’s test for the TA MEP/Mmax differences between Pre and other time points for each intervention.
| NMES | NMES+VOL | VOL | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Time | Mean Difference (I-J) | P value | 95% CI | Mean Difference (I-J) | P value | 95% CI | Mean Difference (I-J) | P value | 95% CI | ||||
| TA MEP/Mmax | |||||||||||||
| (J) | Pre | ||||||||||||
| (I) | During1 | 0.13 | .54 | -0.11 | 0.38 | 0.33* | < .001 | 0.16 | 0.51 | 0.32* | < .01 | 0.08 | 0.56 |
| During2 | 0.12 | .69 | -0.13 | 0.36 | 0.35* | < .001 | 0.18 | 0.53 | 0.44* | < .001 | 0.20 | 0.68 | |
| During3 | 0.22 | .10 | -0.03 | 0.46 | 0.39* | < .001 | 0.22 | 0.57 | 0.48* | < .001 | 0.25 | 0.72 | |
| During4 | 0.25* | .04 | 0.01 | 0.49 | 0.46* | < .001 | 0.28 | 0.63 | 0.50* | < .001 | 0.26 | 0.73 | |
| Post0 | 0.26* | .04 | 0.01 | 0.5 | 0.34* | < .001 | 0.17 | 0.52 | 0.34* | < .01 | 0.10 | 0.58 | |
| Post10 | -0.12 | .68 | -0.36 | 0.13 | 0 | >.99 | -0.17 | 0.17 | 0.00 | .92 | -0.24 | 0.24 | |
| Post20 | -0.07 | .98 | -0.31 | 0.18 | -0.01 | >.99 | -0.18 | 0.17 | -0.04 | .98 | -0.28 | 0.20 | |
| Post30 | -0.11 | .75 | -0.35 | 0.13 | -0.1 | .45 | -0.28 | 0.07 | -0.10 | .84 | -0.34 | 0.14 | |
| Soleus MEP | |||||||||||||
| (J) | Pre | ||||||||||||
| (I) | During1 | 0.02 | >.99 | -0.12 | 0.15 | 0.15* | < .01 | 0.05 | 0.25 | 0.1 | .09 | -0.01 | 0.2 |
| During2 | 0.05 | .90 | -0.09 | 0.19 | 0.16* | < .001 | 0.06 | 0.26 | 0.16* | < .001 | 0.06 | 0.27 | |
| During3 | 0.11 | .19 | -0.03 | 0.25 | 0.18* | < .001 | 0.08 | 0.28 | 0.18* | < .001 | 0.07 | 0.28 | |
| During4 | 0.11 | .19 | -0.03 | 0.25 | 0.21* | < .001 | 0.12 | 0.31 | 0.18* | < .001 | 0.07 | 0.28 | |
| Post0 | 0.11 | .17 | -0.03 | 0.25 | 0.13* | < .01 | 0.03 | 0.23 | 0.1 | .09 | -0.01 | 0.2 | |
| Post10 | -0.03 | .99 | -0.17 | 0.11 | 0.03 | .98 | -0.07 | 0.12 | -0.02 | >.99 | -0.12 | 0.09 | |
| Post20 | -0.01 | >.99 | -0.14 | 0.13 | 0.07 | .31 | -0.03 | 0.16 | 0.07 | .29 | -0.03 | 0.18 | |
| Post30 | 0.02 | >.99 | -0.12 | 0.15 | 0.07 | .25 | -0.03 | 0.17 | 0.03 | .98 | -0.08 | 0.13 | |
| Error | |||||||||||||
| (J) | Pre | ||||||||||||
| (I) | Post0 | -0.02 | .99 | -0.21 | 0.16 | -0.07 | .92 | -0.36 | 0.21 | -0.05 | .93 | -0.24 | 0.15 |
| Post10 | 0.01 | >.99 | -0.17 | 0.19 | -0.03 | .99 | -0.31 | 0.24 | -0.09 | .51 | -0.28 | 0.09 | |
| Post20 | 0 | >.99 | -0.18 | 0.19 | -0.25 | .09 | -0.53 | 0.03 | -0.02 | .99 | -0.21 | 0.16 | |
| Post30 | 0.03 | .98 | -0.15 | 0.21 | -0.05 | .97 | -0.33 | 0.23 | -0.07 | .69 | -0.26 | 0.11 | |
| Reaction time | |||||||||||||
| (J) | Pre | ||||||||||||
| (I) | Post0 | 0 | >.99 | -0.02 | 0.03 | 0 | >.99 | -0.03 | 0.02 | 0.02 | .87 | -0.04 | 0.08 |
| Post10 | -0.01 | .79 | -0.03 | 0.02 | 0 | >.99 | -0.02 | 0.03 | 0.05 | .18 | -0.01 | 0.11 | |
| Post20 | 0 | >.99 | -0.02 | 0.02 | 0.01 | .82 | -0.02 | 0.03 | 0.05 | .16 | -0.01 | 0.11 | |
| Post30 | -0.01 | .77 | -0.03 | 0.02 | 0.01 | .78 | -0.02 | 0.03 | 0.02 | .77 | -0.04 | 0.08 | |
* p < .05
Abbreviations: CI, confidence interval; MEP, motor evoked potential; NMES, neuromuscular electrical stimulation; TA, tibialis anterior; VOL, voluntary contractions.