Characterization of Fasciculation Potentials (FPs) in Amyotrophic Lateral Sclerosis (ALS) and Peripheral Nerve Hyperexcitability Syndromes (PNH)
Table 4
Parameters of fasciculation potentials (FPs) in ALS with different muscle strength and PNH.
Number of FPs
G1 ALS-MRC 5
G2 ALS-MRC 4
G3 ALS-MRC 3
G4 PNH FPs
278
373
132
183
Amplitude (μV)
445.00 (85-4998)
572.00 (89-4681)
445.50 (40-6080)
333.00 (90-2300)
G1 vs. G4, G2 vs. G4, G3 vs. G4, G1 vs. G2, 0.001 G1 vs. G3, 0.912 G2 vs. G3, 0.006
Duration (ms)
15.73 (5.6-27.7)
15.63 (9-15.0)
16.35 (7.8-27.0)
13.56 (4.7-27.0)
G1 vs. G4, G2 vs. G4, G3 vs. G4, G1 vs. G2, 0.639 G1 vs. G3, 0.243 G2 vs. G3, 0.277
Number of phases
4.34 (1-16)
4.35 (1-16)
4.18 (2-14)
3.39 (1-9)
G1 vs. G4, G2 vs. G4, G3 vs. G4, G1 vs. G2, 0.827 G1 vs. G3, 0.675 G2 vs. G3, 0.529
Number of turns
4.15 (0-16)
4.47 (0-22)
3.90 (1-13)
2.73 (0-10)
G1 vs. G4, G2 vs. G4, G3 vs. G4, G1 vs. G2, 0.128 G1 vs. G3, 0.610 G2 vs. G3, 0.066
Area (mVms)
0.96 (0.1-13.5)
1.04 (0.1-13.3)
0.96 (0.1-25.6)
0.49 (0.1-5.2)
G1 vs. G4, G2 vs. G4, G3 vs. G4, G1 vs. G2, 0.034 G1 vs. G3, 0.333 G2 vs. G3, 0.478
Polyphasic (%)
49.28
48.79
43.94
26.23
G1 vs. G4, G2 vs. G4, G3 vs. G4, G1 vs. G2, G1 vs. G3, G2 vs. G3,
FP frequency (Hz)
2.88 (0.5-8.3)
3.60 (0.5-12.5)
1.20 (0.3-20.0)
7.15 (5.5-40.0)
G1 vs. G4, 0.001 G2 vs. G4, 0.004 G3 vs. G4, 0.018 G1 vs. G2, 0.356 G1 vs. G3, 0.542 G2 vs. G3, 0.452
The data were shown as median (range). ALS: amyotrophic lateral sclerosis; PNH: peripheral nerve hyperexcitability syndrome; MRC: medical research council.