Table 1 Electrophysiological parameters of normal subjects and spastic groups
From: Biceps femoris late latency responses and the “notching sign” in spasticity
Normal | Hemiparetic | Paraparetic | Spasticity | ||||
|---|---|---|---|---|---|---|---|
Left side | Unaffected side | Affected side | Severe side | Total | p* | p** | |
T lat(ms) | 17.9 ± 1.9 | 18.0 ± 1.8 | 17.3 ± 2.5 | 18.1 ± 2.1 | 17.7 ± 2.3 | 0.853 | 0.389 |
T amp (μV) | 6404 ± 2859 | 3038 ± 1943 | 6579 ± 4369 | 7356 ± 4092 | 7146 ± 4126 | 0.636 | 0.000 |
Bf-M2 Lat (ms) | 33.6 ± 6.1 (24 %) | 26.1 ± 10.1 (12.5 %) | 33.0 ± 12.8 (35 %) | 39.6 ± 10.7 (50 %) | 36.6 ± 11.9(41 %) | 0.009 | 0.058 |
Bf-M2 Amp (μV) | 533 ± 201 | 394 ± 464 | 389 ± 262 | 408 ± 320 | 421 ± 290 | 0.006 | 0.582 |
Bf-M3 lat (ms) | NR | 78.5 ± 0.7 (8 %) | 64.7 ± 25.7 (53 %) | 87.9 ± 40.8 (60 %) | 77.4 ± 35.5(55 %) | - | 0.360 |
Bf-M3 Amp (μV) | NR | 271 ± 323 | 373 ± 241 | 299 ± 175 | 335 ± 209 | - | 0.019 |
Accelerometer(ms) | 51.4 ± 9.8 | 55.2 ± 8.9 | 54.5 ± 9.6 | 49.5 ± 8.9 | 51.8 ± 9.4 | 0.659 | 0.820 |