From: Evaluation of F wave and split hand index in patients with amyotrophic lateral sclerosis
Parameter | Pyramidal signs in patients with ALS | P value | |
---|---|---|---|
No n = 24 | Yes n = 20 | ||
F min latency (ms) | 28.27 ± 1.62 | 28.13 ± 1.48 | 0.74 |
F mean latency (ms) | 29.09 ± 1.48 | 30.28 ± 2.63 | 0.207 |
F max latency (ms) | 32.48 ± 2.16 | 32.21 ± 2.61 | 0.547 |
F chronodispersion (ms) | 4.16 ± 1.46 | 4.1 ± 1.98 | 0.777 |
F persistence (%) | 87.58 ± 15.92 | 83.62 ± 17.94 | 0.379 |
F max amplitude (μV) | 591.36 ± 189.18 | 742.6 ± 243.34 | 0.015 |
F mean amplitude (μV) | 386.81 ± 119.62 | 549.35 ± 239.83 | 0.013 |
F median amplitude (μV) | 438.65 ± 169.3 | 564.8 ± 196.96 | 0.029 |
F wave duration (ms) | 10.1 ± 0.91 | 10.63 ± 1.5 | 0.150 |
FWCV (m/s) | 57.23 ± 4.58 | 56.95 ± 7.69 | 0.333 |
Giant F wave (n) | 1.4 ± 3.03 | 1.58 ± 3.17 | 0.111 |
F/M Max AR (%) | 7.21 ± 1.1 | 8.87 ± 1.78 | < 0.001 |
F/M mean AR (%) | 4.35 ± 1.26 | 6.22 ± 2.3 | 0.012 |
F/M median AR (%) | 6.5 ± 2.8 | 8.3 ± 6.3 | 0.045 |
IRN (%) | 4.015 ± 8.678 | 9.25 ± 21.22 | 0.703 |
IRF | 3.15 ± 7.036 | 5.917 ± 12.12 | 0.781 |