Table 2.
Myosin:actin ratio and the CMAP amplitude (mV), mCV (m/s) and distal Lat. (ms) in motor nerves (fibular, tibial and median nerves) together with sCV (m/s) and sAmp in median and sural nerves measured at six different time points during the 12 day observation period
| Variable | 1st | 2nd | 3rd | 4th | 5th | 6th | P value |
|---|---|---|---|---|---|---|---|
| Myosin:actin ratio | 2.0 ± 0.253,4,5,6 | 1.7 ± 0.35,6 | 1.5 ± 0.21,6 | 1.4 ± 0.21 | 1.2 ± 0.31,2 | 0.9 ± 0.21,2,3 | <0.001 |
| CMAP (median nerve) (mV) | 6.0 ± 2.4 | 6.5 ± 2.7 | 5.8 ± 2.3 | 5.8 ± 2.6 | 5.9 ± 2.0 | 5.6 ± 2.8 | n.s. |
| mCV (median nerve) (m/s) | 55.7 ± 3.1 | 56.7 ± 3.2 | 56.6 ± 6.0 | 52.3 ± 4.2 | 56.9 ± 5.1 | 55.8 ± 3.1 | n.s. |
| Lat. (median nerve) (ms) | 3.8 ± 0.9 | 3.5 ± 0.7 | 3.4 ± 0.7 | 3.5 ± 0.6 | 3.5 ± 0.7 | 3.3 ± 0.7 | n.s, |
| sCV (median nerve) (m/s) | 53.7 ± 9.6 | 56.8 ± 8.9 | 58.1 ± 8.5 | 55.9 ± 6.9 | 57.2 ± 8.1 | 57.3 ± 7.2 | n.s. |
| sAmp (median nerve) (μV) | 16.7 ± 12.9 | 20.4 ± 15.9 | 17.9 ± 10.2 | 15.5 ± 9.5 | 15.2 ± 10.5 | 15.8 ± 6.5 | n.s. |
| CMAP (fibular nerve) (mV) | 3.4 ± 1.7 | 3.2 ± 2.1 | 3.0 ± 2.1 | 2.9 ± 1.7 | 2.5 ± 1.4 | 2.7 ± 2.3 | n.s. |
| mCV (fibular nerve) (m/s) | 46.1 ± 5.6 | 44.1 ± 8.1 | 43.0 ± 9.0 | 40.9 ± 8.1 | 43.3 ± 6.9 | 46.0 ± 5.0 | n.s. |
| Lat. (fibular nerve) (ms) | 4.8 ± 1.4 | 4.8 ± 1.9 | 4.5 ± 1.5 | 4.5 ± 1.4 | 5.2 ± 2.5 | 4.8 ± 1.7 | n.s. |
| CMAP (tibial nerve) (mV) | 8.2 ± 3.4 | 8.7 ± 2.9 | 8.4 ± 3.7 | 9.1 ± 3.9 | 8.8 ± 4.8 | 9.4 ± 5.6 | n.s. |
| mCV (tibial nerve) (m/s) | 46.9 ± 5.0 | 48.1 ± 4.8 | 49.6 ± 4.7 | 46.3 ± 4.7 | 48.1 ± 3.1 | 48.4 ± 5.6 | n.s. |
| Lat. (tibial nerve) (ms) | 4.7 ± 1.4 | 3.9 ± 0.5 | 4.6 ± 1.9 | 4.2 ± 0.8 | 4.5 ± 1.2 | 4.2 ± 0.5 | n.s. |
| sCV (sural nerve) (m/s) | 57.6 ± 10.0 | 59.0 ± 5.1 | 57.3 ± 8.3 | 59.6 ± 4.8 | 55.8 ± 7.3 | 61.1 ± 5.1 | n.s. |
| sAmp (sural nerve) (μV) | 12.9 ± 5.7 | 15.2 ± 12.0 | 9.8 ± 4.3 | 11.1 ± 5.8 | 12.1 ± 6.0 | 12.7 ± 6.6 | n.s. |
Note: Values are means ± standard deviation. Statistically significant differences according to one‐way ANOVA are indicated as indices (not statistically significant [n.s.]). Abbreviations: CMAP, compound muscle action potential; Lat., latency; mCV, motor nerve conduction velocity; sAmp, sensory nerve amplitude; sCV, sensory nerve conduction velocity. Statistically significant differences between days are indicated by superscript numbers.