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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
  1. *Normal and Spasticity **All groups