Table 1.
The CMAP amplitudes in three groups at each time point.
| i | Weeks | Experimental group amp. (mV) | Control group amp. (mV) | Sham operation group amp. (mV) |
|---|---|---|---|---|
| 1 | 5 | 1.50 | 0.00 | 16.00 |
| 2 | 8 | 1.80 | 0.00 | 25.50 |
| 3 | 11 | 0.73 | 0.00 | 12.18 |
| 4 | 14 | 1.90 | 0.00 | 12.08 |
| 5 | 19 | 3.80 | 0.00 | 25.60 |
| 6 | 23 | 5.92 | 0.00 | 15.05 |
| 7 | 24 | 7.17 | 0.00 | 20.30 |
| 8 | 26 | 11.00 | 0.00 | 20.80 |
|
| ||||
| Mean | 4.23 | 0.00 | 18.44 | |
|
| ||||
| Std | 3.56 | 0.00 | 5.44 | |
Data are expressed as mean ± SD. Experimental group: 4.23 ± 3.56. Control group: 0.00 ± 0.00. Sham operation group: 18.44 ± 5.44. Two independent samples of t test showed that there is statistical difference between experimental group and control group, t = 2.72, P < 0.05. CMAP: compound muscle action potential; SD: standard deviation.