Table 3 Comparisons of CMAPs (constant current versus constant voltage) between the right and left sides during stimulation using patterns 1 and 2.
Muscles | Laterality | Constant current | Constant voltage | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pattern 1 | Pattern 2 | Pattern 1 | Pattern 2 | ||||||||||
right: anode, left: cathode | right: cathode, left: anode | right: anode, left: cathode | right: cathode, left: anode | ||||||||||
Median | Interquartile range | p value | Median | Interquartile range | p value | Median | Interquartile range | p value | Median | Interquartile range | p value | ||
Del | Right | 194.0 | [35–602] | <0.01 | 430.0 | [105–1155.5] | <0.01 | 520.0 | [200–1440] | <0.01 | 456.0 | [220–1105] | 0.04 |
Left | 330.0 | [110–819] | 140.0 | [18.3–349.3] | 370.0 | [147–830] | 376.5 | [141.5–1012.5] | |||||
APB | Right | 470.0 | [31–1680] | <0.01 | 1335.0 | [245.3–3197.5] | <0.01 | 1280.0 | [240–3030] | 0.46 | 1325.0 | [254.3–2785.0] | 0.09 |
Left | 1176.0 | [304–2690] | 380.0 | [37.8–1572.5] | 1190.0 | [240–2890] | 940.0 | [240.5–2520.0] | |||||
Quad | Right | 10.4 | [0–133] | <0.01 | 47.0 | [5–281] | <0.01 | 101.0 | [16.1–560] | 0.51 | 80.0 | [16.6–460] | 0.60 |
Left | 75.0 | [0–320] | 10.3 | [0–93] | 150.0 | [27–423.0] | 139.0 | [20–530] | |||||
TA | Right | 67.0 | [0–390] | <0.01 | 280.0 | [34–970] | <0.01 | 580.0 | [136–2300] | 0.02 | 522.0 | [130–1910] | 0.58 |
Left | 338.0 | [64–1490] | 54.0 | [0–430] | 630.0 | [100–1780] | 490.0 | [148–1790] | |||||
GC | Right | 42.0 | [0–193] | <0.01 | 140.0 | [41–570] | <0.01 | 250.0 | [85–865] | 0.63 | 266.0 | [83–720] | 0.33 |
Left | 220.0 | [50–620] | 32.0 | [0–212] | 340.0 | [83–880] | 349.0 | [88–967] | |||||
AH | Right | 160.0 | [50–630] | <0.01 | 555.0 | [112–1600] | <0.01 | 1020.0 | [360–2032] | 0.37 | 1030.0 | [423–2210] | 0.43 |
Left | 830.0 | [210–1700] | 180.0 | [20–750] | 1150.0 | [443–2400] | 1160.0 | [410–2061] | |||||
