Table 1.
Means and standard deviations for age, symptoms duration, soleus H-reflex amplitudes in millivolts (mV), soleus H-reflex latencies in millisecond (ms), soleus side-to-side amplitude H/H ratios, soleus side-to-side latency differences of all participants
| Healthy controls | Patients with normal latency | Patients with abnormal latency | |||
|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | P-value | ||
| Age | 39.6 (12.4) | 46.2 (12.3) | 45.8 (14.4) | ||
| Amplitude (mV) | Right or Symptomatic | 5.98 (2.21) | 3.95 (2.34) | 2.37 (1.88) | |
| Left or Asymptomatic | 6.02 (2.03) | 5.22 (2.75) | 4.0 (2.34) | ||
| Latency (ms) | Right or Symptomatic | 29.98 (2.7)† | 31.44 (2.69) | 32.93 (2.82)† | .0005* |
| Left or Asymptomatic | 30.04 (2.6) | 31.35 (2.72) | 31.87 (2.74) | ||
| H/H ratio | 0.83 (0.11)‡§ | 0.67 (0.12)‡ | 0.54 (0.14)§ | .0005* | |
| Latency differences | 0.12 (0.03) | 0.31 (0.1) | 1.36 (0.65) | ||
| Duration of symptoms (days) | N/A | 31.0 (8.6) | 57.0 (8.2)†† |
* Indicates significant differences (p < .05) for the soleus H-reflex parameters between groups using ANCOVA.
‡ Indicates significant differences (p < .05) between healthy controls and patients with normal latency for H/H ratio using Boferroni correction.
§ Indicates significant differences (p < .05) between healthy controls and patients with abnormal latency for H/H ratio using Boferroni correction.
† Indicates significant differences (p < .05) between healthy controls and patients with abnormal latency for latency parameter using Boferroni correction.
†† Indicates significant correlation between amplitude asymmetries and symptoms duration.