Table 1. Quantitative data of H-reflex before and after SCI.
| SCI time | H-Lat (ms) | M-Lat (ms) | H-Amp (mV) | M-Amp (mV) | H/M ratio | |
|---|---|---|---|---|---|---|
| Normal (n=24) | Uninjured | 7.69±0.07 | 2.12±0.11 | 3.44±0.15 | 14.04±0.53 | 0.2525±0.0103 |
| SCI control (n=12) | 2 weeks | 4.99±0.10 | 1.45±0.07 | 4.72±0.26 | 11.68±0.89 | 0.4231±0.0305 |
| 22 weeks | 6.61±0.14 | 1.65±0.08 | 4.57±0.27 | 14.42±1.20 | 0.3354±0.0288* | |
| SCI+TANES (n=12) | 2 weeks | 5.06±0.09 | 1.32±0.07 | 3.85±0.35 | 9.97±0.91 | 0.4075±0.0371 |
| 22 weeks | 5.20±0.17 | 1.41±0.15 | 4.25±0.43 | 15.89±1.43 | 0.2717±0.0200* |
Abbreviations: Amp, amplitude; H, H-wave; H/M, H-wave amplitude versus M-wave amplitude; Lat, latency; M, M-wave; ms, millisecond; mV, millivolt; SCI, spinal cord injury; TANES, tail nerve electrical stimulation.
*P=0.045, comparison of H/M ratio between trained rats (SCI+TANES) and untrained rats (SCI control) 22 weeks after SCI.
Note: all data were expressed as mean±s.e.m.