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Table 3 Electrophysiological parameters of normal subjects and patients in spastic group according to the Ashworth scale

From: Biceps femoris late latency responses and the “notching sign” in spasticity

  Normal Spasticity Ash 1 Ash 2 Ash 3 Ash 4 p* p**
T lat(ms) 17.9 ± 1.9 17.7 ± 2.3 17.4 ± 2.3 17.8 ± 2.1 18.0 ± 2.4 16.5 ± 3.1 0.853 0.164
T amp (μV) 6404 ± 2859 7146 ± 4126 5315 ± 2832 8738 ± 4758 8344 ± 2623 683 ± 338 0.636 0.000
Bf-M2 Lat(ms) 33.6 ± 6.1(24 %) 36.6 ± 11.9(41 %) 34.5 ± 13.8 40.2 ± 9.6 39.3.7 ± 6.7 23.9.7 ± 9.4 0.175 0.104
Bf-M2 Amp (μV) 533 ± 201 421 ± 290 400 ± 325 507 ± 340 345 ± 171 173 ± 98 0.215 0.003
Bf-M3 lat (ms) NR 77.4 ± 35.5(55 %) 77.7 ± 52.2 69.9 ± 26.6 83.9 ± 26.6 101 ± 25 - 0.600
Bf-M3 Amp (μV) NR 335 ± 209 322 ± 161 393 ± 268 293 ± 149 149.5 ± 47 - 0.251
Accelerometer(ms) 51.4 ± 9.8 51.8 ± 9.4 48.7 ± 8.6 55.9 ± 9.1 50.3 ± 10 54.2 ± 10 0.659 0.346
  1. *Normal and Spasticity **Ashworth groups