Table 2 Results from surface electromyography, maximal isometric voluntary contraction and pattern differentiation
| Â | Healthy subjects | Post-stroke patients | ||
|---|---|---|---|---|
| Â | LI11 | PC2 | LI11 | PC2 |
Maximal isometric voluntary force (kg) | ||||
   Pre-intervention | 22.2 ± 10.7 | 18.8 ± 4.6 | 9.6 ± 3.9 | 10.7 ± 5.6 |
   Post-intervention | 21.7 ± 9.5 | 18.7 ± 6.0 | 9.6 ± 4.7 | 10.2 ± 5.3 |
   P (post × pre) | 0.288 | 0.468 | 0.499 | 0.251 |
   P (ΔMIVC LI11 × PC2) | 0.340 | 0.303 | ||
Root mean square value (V) | ||||
   Baseline noise | 0.105 ± 0.010 | 0.115 ± 0.026 | 0.202 ± 0.085 | 0.179 ± 0.052 |
   Pre-intervention | 1.392 ± 0.826 | 1.494 ± 0.826 | 0.627 ± 0.335 | 0.601 ± 0.258 |
   Post-intervention | 0.612 ± 0.320 | 0.623 ± 0.320 | 0.530 ± 0.272 | 0.591 ± 0.326 |
   P (post × pre) | 0.002 | 0.001 | 0.187 | 0.398 |
   P (ΔRMS LI11 × PC2) | 0.391 | 0.220 | ||
Identified pattern | ||||
   Fire heat | 0 (0%) | 3 (18%) | 3 (43%) | 4 (50%) |
   Phlegm dampness | 7 (47%) | 6 (35%) | 2 (29%) | 2 (25%) |
   Qi deficiency | 7 (47%) | 6 (35%) | 1 (14%) | 1 (13%) |
   Yin deficiency | 1 (7%) | 2 (12%) | 1 (14%) | 1 (13%) |
   P (healthy × patients) | χ2 = 9.759; P = 0.021 | |||